Anxiety so bad i didnt eat 5 days.

Hi everyone, I just went through a brutal 5 day stretch and wanted to see if anyone relates or has advice. A few days ago, my body completely went into survival mode. It started with what felt like a massive panic attack, but instead of lasting just a few minutes, the "alarm" stayed on for days. During those 4 days, my symptoms were intense: • Severe stomach issues: My stomach was in a total knot. I felt constant nausea and was terrified to eat anything because I thought it would make me sick. • Constant fight-or-flight: I couldn't sleep properly, couldn't function, and felt totally exhausted but wired at the same time. • Mental drain: The nonstop anxiety left me feeling completely hopeless and trapped, wondering if I'd ever feel normal again. Today, I suddenly woke up feeling like a brand new person—my stomach settled, I could finally eat, and the anxiety lifted. Has anyone else experienced a panic/anxiety state that locks your body down for days like a "stress hangover"? Is it normal to suddenly feel completely fine, and should I expect any setbacks or waves of fatigue in the coming days?

Thanks in advance!