 [ Symptoms ] ache in the right back side of head 3 weeks when i breathe through my mouth do not feel it at all only through nose i have had an ache in the back right side of head for about 3 weeks i do not feel any pain when i breathe through my mouth it only hurtsburning ache when i breathe through nose i can block the right nostril and also get relief that way so it seems to be only happen through the right nostril could this be a type of occipital neuralgia does not hurt when i cough or sneeze or move my head i do not really want to go for an mri if i could rule out anything serious [ Disease ] if you have so much distention in your abdomen and no tests are diagnostic of anything specific then it can be due to excessive gas formation or bloating secondly if you have an ovarian cyst then it can cause hormonal imbalance water retention that can also cause stomach to swell so it is advisable to get a thorough hormonal profile done with a transvaginal sonography and consult a gynaecologist if it is due to weight gain or bloating then regular exercise diet modifications and appropriate medication for gas like simethicone can help hope this helps