I bought salmon and cook part of it the same day. Later on that day I have severe diarrhea. I wasnt exactly sure if it was the salmon considering the fact that I've never gotten sick from salmon before. I properly stored and froze the rest of the salmon and waited for a few days to pass. I defrosted and cooked another piece and hour later had very serve diahrrrea once and. It had to be the salmon considering the fact that that I hadn't eat prior. What are the next steps I should take?