Top of toungue fill funny n burns when I eat hot stuff it came on after flear ups of acid refulx just repeated burping n acid n throat why?

Possible. You may have chemically or thermally burned your tongue. Avoid hot & spicy foods for a while, treat the acid reflux as per your physician's instructions, and eat/drink a bland diet and it should improve in a few days.
Fire in the Mouth. People with acid reflux can develop many oral problems. Among them are halitosis (bad breath) and dental caries (cavities), as well as soft tissue problems like mouth ulcers and issues with their tongue. No one knows for sure why these occur, but some postulate that a change in the bacteria of the mouth occurs due to the presence of a lower pH (acidity), which might also explain a tender tongue.