How much hCG?
Low calcium and magnesium are associated with leg cramps. Are you taking anti-oxidants?
How do those muscles respond to massage? There might have been a pre-existing condition/state of the muscles that TRT took to the next level. If the muscles have knots, those need to be massaged out. That can be painful. Do that in stages, all at once is probably a bad idea in this situation.
Stand on the lower step of stairs and hold onto the railing. Toes only on the step. Let body weight drop your heals and extend the muscles. Hold for a spell then walk around and repeat. What happens.
Some isolated leg cramps are known to sometimes happen, but nothing as you describe.
Does the problem have a pattern of change during the week driven by the weekly injections? Less of a problem later in the week? If so, inject more often and severity might then be less.
Otherwise, how do you feel?
Can you post lab work with ranges?
Have you read the stickies?
The fact that the problem is bi-lateral should rule out deep vein thrombosis.
Some have issues that resolve switching to a different brand or ester. Additives or derivation from soy can be the issue, as well as the oil base. I don't think that this applies in this situation as the problem is so isolated.
age, weight, waist?
Where do you carry fat?
other med issues?
taking a statin drug? If so take high dose CoQ10 and see if that resolves the problem.
Drugs? - Rx or OTC
I would like to see your hematocrit and BP.
I think that your running/jogging is part of the crime scene.