Hi welcome to Health care magic forum.
Thanks for calling H.C.M.F.
As you describe you are 26, and have pain in the right hand side of your stomach, down into the hip. in December. Doctor thought it is Diabetis and treated for pain, got cured.
Now again you got pain with more intensity, and bloating
Most probably it is stone in the ureter
near the ureterovasical junction, struggling to pass into the bladder, causing the pain.
Other cause may be orthopedic cause arthritis
of the hip joint.
I advise you to consult a urologist
for diagnosis and treatment. You may have to go for M.R.I., Urithroscopy, besides other routine tests for confirmation.
Wishing for a quick and complete recovery.