I have some of those. I have just written it off to that's the way it's going to be. On the other hand I work pretty hard, a physical job. I have noticed that I just cant do what I used to. Not up to it anymore. I've been out of treatment for 4 years, it was my 3rd go with it though and I am 52, so it's probable just a combination of getting older and the side effects for me. If you haven't already, ask your Dr. about it next time back. Sometimes it does no good, I have asked mine about lots of things and I think the standard answer is "yes, that sort of thing will happen, you've been through a lot" Seems I get this when they really don't know how to answer my question.
Best of luck to you, hope you get the "kinks" worked out.