I am experiencing dizzy spells feel like throwing up feel so weak havent been able to drink or eat much without vomiting can someone tell me the signs of dehydration amd when its necessary to go to the er

When you are sick enough you will go to the ER. Do not rely on strangers to tell you. We are not medical doctors. I vomited 8 hours from taking a medicine and finally I knew I had to go. I was so dehydrated they could not draw blood and I spent the night, admitted, to get IVs and treatment. Trust your gut instinct!!!!!!

I think you need to go to Emergency room. Cause sounds to me you are dehydrated.

Yes im on my way thank u both