I Had A Case Of Eating Bad Fish On Wednesday.

I had a case of eating bad fish on Wednesday. Vomited several times felt week and breathing was short became dehydrated drank Gatorade then went on brat diet on Thursday Friday I ate bland chicken and rice ! Stomache feels better but I have smal cough and chest aches a little when I cough and it seems a little tough to take deep breathe besides that I fell ok ! Can I go in my hot tub to relax ! Any advise on cough and ache in chest