Discontinuing

I've been off the pill for over a month now. Not sure exactly when, but sometime in June I believe. The first little while was fine and normal, but after my first period (which was heavy but normal) I've had without the pill, I've been feeling sick almost every day recently. Severe cramps, intestinal issues, hot flashes, nausea, emotional, etc. Is it possible to have withdrawal or anything of the like when getting off the pill?