Hi welcome to Health care magic forum.
Thanks for asking a question to H.C.M.F.
Your stomach suddenly became sour, and tender, hurts when you move or breath in, at the upper central part of the belly.
Most probably it is due to the green tea, and rasberry ketones also can cause the pain. Probably you have taken them in empty stomach, or they may show irritation with out any reason also.
If you happen to get the gastric pain it could be due to gasritis or ulcer. other causes are pancratitis, gall bladder
Such occasional pains usually subside automatically, if no relief consult a surgeon for diagnosis and treatment. You may have to go for M.R.I.besides other routine tests for confirmation.
Wishing for a quick and complete recovery.