First of all, let me tell you that it is extremely inappropriate to stop anti-epileptic drugs like dicorate ER on your own. They need to be tapered by a physician. I think what you are currently experiencing is a relapse and you need to go back to your physician and start proper anti-epileptic treatment again. Lack of sleep is known to trigger epileptic fits
and this is a serious condition.
For the digestion problems, I think you need to eat small regular healthy meals every 3-4 hours. Also, exercise for atleast 30-40 minutes daily. Drugs like proton pump
inhibitors like omeprazole
also need to be taken. These are prescription drugs and you need to speak with your physician about this.
of the abdomen may be needed and you need an in person assessment ( a consultation with a physician) to check these problems.
Please see a physician soon.
Hope this helps