I have been feeling really tired, and have severe headaches. I went to the doctor and he did some blood work and found that my testostrone level was low. I am going to have more blood work done on my testostrone level. If my low testostrone is the cause of my headaches and fatigue that the low levels will be corrected by medication. I am just wondering has anyone on here had experience with this? what kind of medication were you on and what were the side affects. I wanted to ask the doctor these questions but he had an emergency and had to go. let me know.