migraine
"I was prescribed flexeril for migraine pain and relief but it actually seems to cause my headaches to get worse instead of better. Flexeril also makes me so drowsy that I can only take it at bedtime and then I wake up feeling completely hung over. Also, flexeril causes me stomach cramps and diarrhea. It definitely didn't work for my headaches and the side effects were ridiculous so I quit taking it."