I went out last week and had a few to many drinks and on the sunday I was violently sick for 6hrs. My doctor said I had gastric flu. I then ended up going to a e on the Thurs as my eyesight was blurred and I had bad headaches and feeling nauseas. This has continued and its now Thursday( 10 days ago) and nothing has changed, any ideas as to what this could be? I am just sleeping all the time and cant eat. I did try to eat some salmon and veg last night but spent the night with bad stomach pains