Hello,
Thanks for posting on HCM,
Actually flexeril (generic name:
cyclobenzaprine) is supposed to be a
muscle relaxant used when ever you are having muscle cramps/spasms and would hardly be responsible (not directly) for
back spasms but could be responsible for anxiety. You may simply be experiencing side effects of flexeril. Amongst the most common we have anxiety,
restlessness, fever, sweating, twitching, nausea, vomiting,
diarrhea, seeing or hearing things that are not there, seizures or tremors etc. This medication should not have been prescribed if there was no indication such as muscle cramps and if you are experiencing already side effects it will be best to discontinue it.
Also talk to your doctor about these new development while you started taking the drug.
Hope this helps and wish you the best