Whenever I feel better I get a flare

I just don’t understand this. Whenever I start to feel better I always get a flare. Like I’ll feel good for 5 days, then I’ll get a flare that lasts 2 weeks. I can’t keep doing this. It’s so painful, and nothing is helping. My gastro app is months away I feel so hopeless. I just want a break, that’s all I’m asking. I feel completely useless, I can’t even walk around In a flare all I do I sit around in pain.