I think one thing you must always keep in mind is that every medication affects everyone differently. Yes, there are a range of general effects and side-effects, but what happens to one person may not happen to you. Take it as your doc. prescribes, and report any weirdness of ANY kind to him/her. ASAP!! That way any side-effects can be dealt with.
Good luck, and I truly hope it helps you! I'm taking it on an as-needed basis myself, for muscle issues. I hope nothing bad happens... to either of us.

luck&love,
~muse