You need to drink more water...that will help the stomach settle down.
Many people don't see anything per RG at Humaworm because 70% of parasites are too small to see. So don't worry about it.
Epsom salt or enema kits can be purchased at your local grocery store. Epsom salts are drank as a laxative and they help flush out the colon. Enema does the same thing except it is done from the other end...
You are barely getting started, sit back and enjoy the ride, and try not to worry so much.