I just had surgery 1 week ago. I was fine for 4 days post-op, except for some itchiness. On the fifth post surgery day,I became ill, with total loss of appetite, nausea, head pressure, dizziness, weakness, fatigue and a general feeling of surrealness (can't connect to reality). My head is constantly swimming, I did have a porcine graph ~ could that be part of the issue? I read that it could be a yeast issue from the antibiotics?