i get the same at the start of any test cycle,just to much of a coincidence to not be cyle related.

Test could cause flu like symptoms with testosterone levels rising so high and quickly. More common with front loading long eaters or at the start of short estered cycles. Sore throat though is probably just sinuses or you're catching a cold. Most likely not related to your cycle

Probably just a coincidence of timing,,,doubt its related to your cycle.

You're sick. It is not the gear.