I am on 5 gm 1% Testim tube daily for Low T.

I rub it on my shoulders after my daily shower, and it dries quickly. But I find sometimes, I get a warm flush about a half hour to an hour after applying... only in my shoulders, neck, and face. Could this be because of the Testosterone?

For many many years, upon making love with my wife, I found I would radiate heat so much, that I had to lay uncovered on the bed, while my wife becomes cold and must cover up. We joked about it for years, that I was baking (a baked potatoe) and putting out heat.

But now I am wondering if what i was experiencing was a surge of testosterone.
Is it possible that the physical act of intercourse, (specifically missionary position) might compress the testes and release additional testosterone?
Or is this too far fetched? Is this how the testes and testosterone work?

Last sunday, we were having sex, and though I did not climax and was not able to maintain an erection despite my interest and desire (it was a LONG, LONG day) I did experience an extremely hot warm flush in my neck and face. Now, I had washed off the testim that I had applied almost six hours earlier, and there was no sticky residue of the gel left on my flesh. But I really felt the warmth where it had been for hours.

Does testim reactivate if you apply water or moisture?
Or does testim reactivate if your body temperature increases, or if your blood circulation increases or spikes?

I'd really like to hear from someone well versed in Testim and in testosterone. Thanks.