Eating advice

I was on MJ for about 2 years doing great. AIC was in the low 6s and dropped close to 80 pounds. Stopped for two months, just being lazy, and started back up about two months ago. Dr put me back on at 7.5 which was doing great. Dr upped me to 10 two weeks ago and it was bad. Not sure what happened but sickness hit me out of no where on day two after the dose. Extreme vomiting and dehydration. I skipped last week due to Christmas but need to take another dose tomorrow.

Where I struggle is what should I eat with the new dose? I cannot have a repeat of what happened two weeks ago. I almost went to the hospital it was so bad.