My grandmother has has heart attacks in the past, the last one being over 4 years ago.
She has recently had her medication changed and has been experiencing symptoms similar to the ones she had before her last heart attack.
however, she had a day recently when she felt wonderful and couldn't work out why, until she realisec that she wasn't having the symptoms.
This was a day when she had eaten fish instead of meat and she is wondering if there could be a connection.
Many many thanks from me and from her.