not sure if this is in the correct topic section so feel free to move.
Stats are 29yo (as of next week) 205lbs today, 5'8", about 10% body fat or less (solid obliques and cross striations in quads, chest and tris).

Cycle history:

Weeks 1-12: Test E 250mg 2x/wk. Attempted a test P kicker but gave up after the first week due to pip.
Gained about 20lbs and kept 10-12 of it after PCT.

Weeks 1-16: EquiTest Extreme 350mg EQ and 350mg Test E 2x/wk
Week 17: Test P 100mg eod
Week 18: test P 50mg eod
Didn't gain much weight as I was trying to stay as lean as possible at the time but saw great improvements in muscle shape - started to take on that bodybuilder "look", upper chest finally started to grow, vascularity went through the roof, and I added about 4-5 reps at a given heavy weight in the major lifts. (365 squat from 10 reps to 15 reps, 405 dead lift is up to 12-13 reps).

Current cycle and the one I have questions about:
Weeks 1-12? (length of EBC): Tren A 100mg with Test P 100mg eod.
I had a bit of a hic-up the 2nd week of the EBC - I was demonstrating the battle ropes for my group class and not thinking grabbed the rope about 2 ft from the end and started swinging away. I ended up hitting myself extremely hard in the right testicle. Long story short I got testicular tortion, which if you are unaware is a major medical emergency (you can lose your nut if it isn't fixed in about 6 hours). I was lucky and didn't require surgery, but the pain of manipulating a testicle back into place is beyond words. I must have picked up a flu bug while at the ER cuz I couldn't keep anything down for a couple days after that - could have just been nausea from the pain, but I also pulled a muscle in my groin at the same time from my reaction. Needless to say I was out of commission for about 10 days and dropped from my starting weight of 194lbs all the way down to 185lbs. Since feeling better I have been dirty bulking hard and am up to 205lbs today.
All that probably wasn't important but for the sake of completeness..

Overall the cycle has been going well and I am happy with the results. My muscles are taking on a much denser look, vascularity continues to improve, motivation in the gym is very high - although strength this week hasn't been the best..? Sides for the most part have not been bad - eyes are still blinging white, piss is clear (although i drink about 1.5 gallons of water a day and 4-6 cups milk), Some irritability but easy to control - I just tell myself its the tren and to take a breath and relax and I am fine. Night sweats have been pretty crazy though, had to put a plastic liner on my bed lol - I'm a huge sweater to begin with too.

*Ok So here's my issue/question/concern -- Every time I inject the tren A it freaking hurts. As soon as I put pressure on the plunger its like white hot fire in whatever spot I'm hitting and tends to continue to hurt for some time after. I end up with a dead arm for a couple hrs when I hit delts. I've never experienced this with other gear - including test from this source. Usually its just a little sore the next day. But the tren is a whole different ball game. Not sure if it is the tren alone thats causing the issue or the mix of test p and tren A?

My other question is injecting 2cc eod is getting to be a lot of pinning/oil for me since I typically only hit delts and glutes and they are starting to get sore. My quads hate being pinned. I've tried a handful of times now on both sides and all but once the reaction was terrible. Swelling, peg legging for a week, extreme pain (this is with any gear not just the tren), and a red streak that runs from the injection site about 6 inches down my leg and about 1.5-2 inches wide. It's not spongy or hot though so I don't think it is an infection, plus it only happens when I pin quads and has happened every time. I've tried different spots, upper, extreme side, outer 1/3 etc, doesn't seem to make a difference. Pinning technique is decent I guess, always swab the area twice, I sit with my legs extended on the floor, pinch my quad and try to relax it as much as possible as I push the pin in, I know I tend to shake a bit as I inject and move the pin around a bit - as a result I tend to inject too quickly I think in an attempt to "get it over". I do always heat the gear and take a hot shower after. I use 23g 1" pin.

Has anyone else had this experience with tren? Do I just need to get used to it and nut up? What suggestions do you have? It's bad enough that I can only bend my knee a couple degrees and can barely drive.
I feel like I've heard it's not recommended to mix long and short esters, but I'm not sure the rational behind that. I was thinking if maybe I went to a once a week long ester test injection at 300-400mg, and stuck with 100mg tren a EOD that would be less oil and maybe less pain?
Thanks in advance for any thoughts, advice or opinions!