Woke up at 1am with sour stomach vomited once was a lot of acid temp was 96.8 my stomach is churning today and gassy also my temp now is 97.8?

Viral infection. Your symptoms are very much suggestive of viral gastritis. It is a self limiting condition. Avoid spices, hot drinks, tea and all anti inflammatory medicines. Bland diet. cold milk in small amounts is soothing. If nausea and abdominal pain don't improve then see your doctor who can prescribe something for symptoms relief. .