Hi,
Nausea, sensitivity to sight/smell of food are signs of
pregnancy ,provided there is pregnancy.There other conditions which have similar symptoms.
Your tests have been -ve 4 times, you had periods,though earlier-you had bright red bleeding,which stopped automatically.All these suggest lac of pregnancy.If you are still doubtful,blood HCG test will help .
The nausea, weakness, sensitivity to smell-can be seen in-
-
Hormonal imbalance leading to
irregular periods ( you had it earlier this time )
- Over eating/indigestion/chronic constipation
-
gastritis, hyper acidity./ reflux esophagitis
- Liver problems/Jaundice/ hepatitis
treatment depends on causative factor.
Try with antacids,metroclopramide ,light diet.If no relief,consult your doctor for physical examination,investigations & treatment as per need.
Thanks.