Neurontin and lupus

I have been on neurontin 300 mg for only 2 weeks, if not less and I feel the weight gain. I'm either bloated or this is unbelievable. I have a disc in both my left hand and my lower back, fibromayalgia and Lupus. Therefore, the severity of my pain is unbearable. With Neurontin, there is no pain. But, there is the dizziness, weight gain, forgetfulness and just feeling incoherent and drunk. I don't think I can handle the side effects. So, I do have a question, if I've only been on neurontin for two weeks, can I just stop them on my own or do I need to speak to my Dr.? I know he will tell me not to which is why I'm asking. I have an issues with my weight and gaining weight would destroy my psyche. Thanks for listening ..it's nice to be able to find common ground with people. I don't feel so alone anymore.

VAGINAL BLEEDING HAVEN'T HAD PERIODS IN 5 YEARS
JUST IN THE PAST FEW DAYS HAVE INCREASED NEURONTIN
TO 1800 TWICE WHAT I HAVE BEEN TAKING FOR THE LAST 4 YEARS. BLEEDING STARTED TONITE. I HAVE FIBRO, LUPUS, ARTHRITIS,FACTOR 8 DEFICIENCY, MIGRAINE EQULIVANT WITH PARYLSIS, GOUT, RLS,SUGAR, HI BLOOD PRESSURE,BURSIDIS,DRY EYE, I THINK THAT IS EVERYTHING
OH YES SEVERE MEMORY LOSS.
PJ