Candi,
No thanks necessary, I like talkin' Women's Health topics. Always feel free to ask.
I don't have a definite answer. I am not sure how you were instructed to use the cream, but typically the instructions are to apply 1) a thin layer or 2) a pea size amount. If this is how you were instructed to use it, the actual amount of testosterone you received from the cream was dependent on the amount of cream applied. If you were using a specific amount of cream , then you received a more specific dose. For example, a cream may be dispensed in a syringe that provides 0.25mg/0.1ml. Your pharmacy should be able to answer your question more specifically.
Since you notice changes in libido and fatigue, discuss this with your gyn. It could be (and probably is) that your testosterone is low, which may be related to your own levels changing or that you are receiving less from your replacement. It can be tricky changing routes of administration because absorption changes with the route plus everyone is different. Your gyn may increase the sublingual dose or change the route of administration. The best route sometimes takes a few tries. BTW, the compounding pharmacy here in my area uses a cosmetic base so that the cream is not sticky, maybe your pharmacy could do the same.
HTH!
Autumn