I'm also taking amiltriptyline. I just had my dosage ingreased to 50mg from 3omg.
My neurologist indicated that dosages up to 150mg are not uncommon.

I also take Depakote (750mg, twice a day) as a prophylactic for headaches.

I also take mirtazapine (54mg), aspirin (81mg) and Crestor (10 mg) daily.

The Depakote and Amiltriptyline are meds prescribed with the PCS symptom onset.
The others I was already taking prior to the PCS.