For the itching, try a sitz bath. Or fill the bathtub with very warm water, sit in it, and soak until the water cools. The hot water will encourage blood flow to the area, and is very comforting and soothing. Also try a bidet squirt bottle to help keep that area clean. Gas is normal at this early stage. It also depends what you eat and drink, and when (close to bedtime?) that can cause gas.