I have really intense lower back pain

The only explanation are mid-period reminders that I do actually have my period now. So, yeah, thanks body but no thanks. The pain started in the middle of cooking so I made lasagna looking like the hunchback of Notre Dame in a duck apron. I’m on my couch now in what I am sure looks like an extremely uncomfortable position while I wait for my food to bake. I realise that making lasagna for one person is really stupid (because it’s a lot of work and ugh, the kitchen is so messy now) but whaddayagonnado if you’re a single household that really, really, really want to eat lasagna right now?