Thanks ladies, after posting this test I spoke with the nurse and oh the shame threw up whilst she was on the fone! 
She did advise to come off the meds, I then slept until half 5, sobbed when i woke as u felt sorry for myself (i was in my own all day so was scared, so when the man got home he had a mini meltdown to deal with) then had a small drink and toast finally kept sumthing down.
I also moved from bed to the settee as the bed was agonising on my back, the mum in law fetched me a hot water bottle for the back which made it a bit easier. I then fell asleep around 9pm ish until 7 am this morning Hoorah!!
The sick feeling has gone so fingers crossed it was just the meds however I can’t help but worry if iv hurt my wounds from all the heaving from yesterday xxxx