I'll try to keep this simple and hopefully help colt45 out.

Ok I read over your stats and profile.
It helps with a little more info. Your goals, BF, diet, is this your complete cycle, did you take bloods before, are you going to take bloods after, do you have pst cycle treatment,your training regiment, is this your lifestyle or just a kick, any health conditions, is it TRT (I doubt just had to ask).
There are a ton of things that must be done. Enough of all that unimportant stuff.

Ok your 6'1 &190 that tell me that you might not have enough muscle mass in your thigh, you should definitely switch to your gluts, it's a solid muscle mass.
Take your right hand and place your thumb on the high pt of your right pelvis bone extend your hand to your glute where your middle finger fall's on your glute you can go inward 1'' that should put in a good spot, dont start to vere upward towards high glute your going to be in the same boat your in now thats a complicated site.

Your injecting in your thigh, there's 7-8 muscles in the front of your leg, 4 make up the majority of mass in the front thigh, again not sure exactly what precise area you are pinning but you can easily split the edge of a seration and hit another, or have a shallow pin and injection will fill very close to muscle surface.

And your pinning 500mg or 250 in your thigh your asking for trouble if your not familiar with muscle breakdown, remember haste makes waste. Delts same thing, pecs can tricky jusy depends on your BF so you can see clear muscle definition. And please no calves, that is for the experienced no disrespect.

Heating pad a little Aleve, and eat up a few bananas should help.

Hope this helps.

Cajun

Go with 1" pins! Anything shorter is looking for problems and can create absorption issues as well as issues at the injection site. Just read the article on Sub Q injections, and I'm not a fan!

I use 5/8th inch with no problem even with high concentrated gear but I’m in the minority on that usually 1inch to 1 1-2 inch is recommended. I never understand why people like pinning quads. I only do glutes and shoulders. IF I were you I would only pin glutes your on long esters so going left cheek right cheek is enough site rotation IMO and it would cut down on pip. Also With Some brands pip is worse then others so going glutes will make it more tolerable if your gear is made with ingredients that give you pip.

Question is I have never had pip that lasted this long and is it caused by accidental subq from 5/8 being to short? Gear dosed high?

yes bro 5/8 is to short, I had the same issue in the past pinning with slin pins, always go with a 1'' or 1.5''.

This happened to me a few weeks ago. Went to the doctor and he said i was going to get aids from it. He was wrong, i grew a 3rd leg. Now i have 3 quads to pin in yay!!!

Over night this and cut your gear

https://www.amazon.com/Grape-Sterile-Filtered-Grade-100mL/dp/B077NPP7Q4/...

If it lasts one more day you are going to want to get ahead of it and just go ahead and amputate that leg. Your life could be on the line bro.

5/8th is too short.
500mg is too high

Pip will be more of a burning sensation sub-Q, v. a baseball bat to the leg sensation with IM