How to not feel so drained from panic attacks. i feel super sleepy during and after an anxiety attack. how can i manage?

Going into full : fight or flight mode is exhausting for the body. It sounds like your panic attacks are not under good control. Are you working with a psychiatrist/ psychologist? Have you had a thorough medical work up to rule out medical causes for your panic? Would work aggressively with medical professionals on this. There are a # of ways to address anxiety: Cognitive behavioral therapy, behavior modification,

Get treated: Seek medical attention and try to get a better control over your anxiety, as if you can hope to have less anxiety attacks, you will not need to deal with the secondary lethargy they cause you. Good luck.