Last topic I posted was on a slight pec tear. I'm still waiting to see a specialist. First time back in the gym today and hitting arms. 5th set in and doing DB skull crushers I feel the same popping/rope strand giving away feeling in my left tricep and I drop the weight. 55lb dumbbells, nothing outrageous. Tricep is tender but can't tell if it's serious or not. I don't see anything. I am now on 80mg Cyp and .5mg Anastrozole EOD. What is going on with my muscles? Am I not drinking enough?I've heard AI's can do this....? It's like I can't push myself without this happening.