i dont really i do eat chocolate a fair bit and i dont like or normaly eat it my sense of smell is strong i can smell some one making coffee in onother house with everything closed up. most food regergetats and i did go of fish for a while.
had blood test negitive ultrasound on monday
Have you seen a physician about this at all? You need to do that so he/she can help you sort this out.
This might just be related to your PCOS or something else, i.e. pregnancy. You should get a BLOOD test to determine whether you are pregnant or not and you should be doing that as SOON as possible.
Also, do you have craving for a certain food?
It is possible that tests don't show the true result, so it's better to check with a doctor. But also it's possible that these signs are not caused by pregnancy, usually you would feel chest sensitivity, cramps like when you're have a period, urge to vomit on certain foods, but you don't have to vomit. Symptoms are different from person to person.