I found out last summer that I had virtually no Testosterone or other hormones, it is a long sordid story. I use a topical Testosterone (Axiron) that I apply to my arm pits daily. With Testosterone injections your levels will spike and then drop back quickly until the next shot. There is also another gel like product that I understand has a "sticky mess" issue.

Endocrinologists are the experts when it comes to testosterone and other hormones. I had the unfortunate experience of finding out how little the vast majority of M.D.s know about hormones. If it is a serious issue get a second opinion ideally at the top local teaching hospital.