Dealing with a Flare After Grad School Thesis Submission

To preface, I was in an awful flare around the holidays and finally got out of it a couple weeks ago. This week I’ve had my thesis due for grad school and finally passed it in last night. Today, I woke up feeling horrible. I feel like every muscle in my body can’t relax and is restless, as a result (i Can breathe but) breathing is just uncomfortable. I feel like it takes effort. My head is also pounding. It’s like my body was running overtime this week to help me work and now it’s making me pay. I can’t even take a nap to rest. Any suggestions on what helps you get ahead of a flare? Electrolytes, water, salt, but I’m desperate for more suggestions. This is not how I wanted to celebrate graduate school. Also has anyone’s body ever held on for busy times like this only to crash big time? I feel like I’m making it up just because of the timing of it. (Although I know im not)