My tsh, t3, t4 levels are normal but i have symptoms of graves disease for sure. can radio uptake scan detect graves disease??

Graves disease is ruled out with normal TSH, T3 and T4. However, symptoms of hyperthyroidism are not very specific and they are common in many other conditions, the list is quite long. Better to discuss with a physician the differential diagnosis (other possible explanations) in the context of a complete history and an exam.

Very Highly unlikely. What makes you think you may have Grave's disease? For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV and Covid vaccines. Wish you good health!