I had this once last time on LT .. Dunno why but one day after each of the shakes I vomited in week 5 .. It was very odd all I did was get myself to bed early and the next morning I was fine .. Hopefully it'll pass for you too!
Sorry to hear you are not feeling well Rickard and I would think it best if you phoned your chemist and see what they advise as you are taking medication.
I know there is a bad stomach bug going around and it is possible you might have that.
Hubby ended up making me a shake and sat it in front of me, in other words drink that... I got haf of it in to me and was on water all day, t.o.m is due aswell ...