Many physicians will prescribe 1 injection of testosterone once every 2-3wks, it's a fairly common protocol that was used for decades. However, physicians who are a little more up to date on testosterone treatment understand it needs to be injected at minimum once every 7 days if your levels are to remain stable. When you inject, your levels will peak 48-7hrs after the injection. As the week goes on they start to fall towards baseline. By the time you get into week two, you are back to your low level and possibly lower due to HPTA suppression. With the once every 2-3wk protocol, you will always experience up and down testosterone levels. Physicians who do not understand this, they're not bad people, they just don't know any better. This isn't something that's taught heavily in med school. A good TRT physician is someone who has taken the time for continuing education and made an effort to understand these things.

Your firomyalgia, with proper testosterone levels, stable and optimal, you may actually begin to feel better. You might also consider growth hormone therapy, such as Sermorelin.