Thank you all very much for your replies! It sure means a lot to me!

I've had a series of blood tests, had one just 4 days ago, and the docsaid all was fine, so I guess he must have checked for low blood sugar and he said the blood pressure was fine too.

I don't think the type of food is the problem cos I've been able to eat stuff all!

Just for an idea, yesterday's breakfast was a butter sandwich, lunch was a chicken pie, and a few ginger nut biscuits in between. Couldn't eat a single thing for dinner. Had about 500ml of diluted Ribena and about a glass of water throughout the day.

Today's breakfast was a mandarin, haven't been able to eat or even contemplate eating a single thing since and it's now almost 4pm! Fluids for the day include 4 mugs of peppermint tea and a red bull for a sugar high.

Gonna head back to the GP tonight after work, wish me luck!