"Hospital call back"

Had to ring 111 as started to take meds so I can have colonoscopy today but started to vomit last nite n hospital papers I was given it stated to get help if this happens. Hubby rang 111 at 7.25pm n they dr from hospital wud ring me within 2 hrs and after we rang 3 times finally dr rang at 12.45am to tell me I shud have rang ward even thou ward only open 9-5 as dr have 100s of ppl to ring sum cancer ppl n then advises she gave me was I cud try sum more of medication n c how I go n to drink fluids like water etc n ribena even thou all hospital advise I was given before I started to prep for colonoscopy was stay away from a lot of foods n fluids n that included anything in red/pink/purple colour n what colour is ribena (purple) so wrong advise dr gave me now frightened to take rest of meds so won't be able to have colonoscopy today as bowels not clear so still dnt no my I was vomiting very bad???