is this normal?

i’ve been having panic attacks upon waking up for about 2 weeks, general upcoming life stuff was stressing me out. even though i had a much smaller scale one this morning the things i were worrying about have now come and gone and i’ve had a much calmer day. but all day i’ve felt really weak and fatigued/nauseous. is this normal after a prolonged period of constant panic attacks? it’s scaring me a whole lot, sorry if this makes no sense