"i was given 10mg amitriptyline for insomnia, anxiety and migraines.  it didn&#039;t seem to help the insomnia much, even with taking .25mg - .5mg klonopin.   so the doctor gave me 25mg amitriptyline which i just couldn&#039;t tolerate.  gave me worse insomnia, nightmares, even some bruises and muscle spasms in my back, which i&#039;m assuming is related to the medication.   i&#039;m going to go back down to the 10mg and see what happens.  i&#039;m so sad because i&#039;ve been reading all of these great reviews, and was really hoping it would help.  i&#039;m underweight, and just very sensitive to most medicines.  so i would say give it a try, since it works differently for everyone.  i will update soon."