Dealing with Post-Meltdown Exhaustion

Do other people remain extremely drained days after large meltdowns or panic attacks?? After my latest major meltdown early last Friday, I needed support to walk around, stand up, and eat for the first day and a half. Today could maybe be the first day that I can climb the stairs without having to either use significant weight on handrails or have to rest halfway up/down. I know the whole rest yourself thing, but life still continues when I’m down (shocker), and when I eventually have no one to take care of me, what is something I can do to support myself in these sorta situations?