Nausea issues

Ever since last week (in 7 weeks 1 day now) I have been force feeding myself food. And it's getting me no where. I'm still at the point where I can only ingest chips. Like Lays. After eating those, I can eat anything. But I ran out of Lays. So I'm back to force feeding. I ate half a peanut butter and jelly sandwich and I couldn't force anything else. I'm not losing weight though and I'm not vomiting (yet) any advice. I know lays aren't exactly heathy but it's the only thing that'll settle my stomach enough for actual food.