suiledonn I could have written your post- especially the bit about wanting to eat something but not knowing what!
In my first pregnancy I had hg from 5 weeks right up until the moment ds1 was born. I lost 2.5 stone and only got relief from ondansetron. Thankfully I had a very good consultant who was happy to prescribe it for me- took the meltlets which dissolve on your gums. (Tried everything else first though) Hospitalised 6 times (last time at 31 weeks) and found it pretty miserable to say the least! Tried acupuncture and sea bands to no avail.
This time round (ds2 is now 6 weeks!) it was worse, much worse, at one point I was being sick 50 times a day - even breathing would make me vomit, the feeling of air going down my throat was enough to make me puke. Swallowing (not food or drink- just generally) would set me off too. However it was only worse initially- was hospitalised 5 times but only up until 15 weeks, ondansetron again was my saviour but this time in suppository form . I think it went away around 24 weeks this time. I did hit on a few self help hints which kept me hydrated and therefore out of hospital after the 15 week mark:
Ice cold water with lots of ice and a dash of robinsons high juice squash
Scratching and sniffing lemons (!)
Sweets- first of all Murray mints, I wouldn't be as nauseous if I had one of these on the go (but I dread to think what my teeth are like now) and then after about 8 weeks of them I moved to Wrigleys Extra, the blue version.
Sleep- think I actually got a bit depressed and whilst sleep wasn't a cure for the nausea/sickness, if I was asleep I didn't have to think about how awful I felt
Seabands- didn't help first time but did this time
Would also recommend cyclazine- not for the intended anti sickess effect but because it gave me the most amazing pyschadelic electric dreams which were fab! That was only via injection in hospital but the tablets I tried at home made me feel a bit woozy like someone else has mentioned which was welcome.
I'm really sad that this was my last pregnancy, but it was very hard on my dh and ds as well as me and I couldn't put my family through that again so no more babies here
Good luck, hopefully it will pass soon enough and you'll have a lovely healthy baby to show for your troubles! (Mine were 8lbs and 8lbs 11 oz so obviously not affected in the slightest.)