Someone Help me. I took Pristiq for a few days cutting the 50mg in half, then i kept forgetting to take them. Now i feel like i have a sinus infection with a lot of pressure in my head, diarrhea, my memory feels foggy and I feel like im gonna pass out at any minute. Could this be happening even though I only took ing for a bout 4 or 5 days and cutting them in half? Please please help