I Have Veges Nerve Syndrom, It Is Aggravated By Stomach

I have veges nerve syndrom, it is aggravated by stomach acid and stress. My doctor recently gave me gabapentin 100 mg because I also have a connective tissue disease and have started having nerve pain and weakness. I take trazadone and esomeprazole mag dr 40 mg. yesterday I had spasms and weakness and feelings like I would pass out. Is the gabapentin the problem?