Quote from CarolH78:

So, if any of you could think of anything that this could be linked to, please reply to this. It would be of great help.
Thank you,
Carol

I am older and have been taking half that dosage at night to help control my migraines (my rheumatologist prescribed it). It's known for causeing daytime sedation. I take the generic version of Elavil; amitriptyline. It sounds like your daughter could very well be suffering the side effects of this medication. There are a number of them and it would seem a match. Take her word for it, if she has fainted, the doctor should be informed. Has she taken more then her prescribed doseage? What you have described are listed in the side effects section. My neuro at the time said that was popular to treat migraine. My rheumatologist told me to start at the lowest dose (5 mg at the start and build up until 30 mg) and see how that works out. My neuro said dosage for migraine is usually higher (and so on). I told him I am not going to take more unless it is needed. So, in my case there was doseing conflict. I took the prescribing doctors recommendation and based on what I read about the medication. The neuro at the time said there is another medication that works like amitriptyline without the side effects...

I myself have been having too many side effects. I can no longer tolerate the cardio symptoms, paresthesias or sedation. Talk to the doctor about it. I would not wait until things progress with your daughter.