hai, coming to know that you have multiple reasons to cause pain in abdomen, it could be the related to the bowel habitués, and features of cystitis
(. urinary bladder
/ tract infection), and you have not mentioned about your cycles if they are regular. general suggestion in this case would be to maintain healthy diet, avoiding all junk food if you consume, need to rule out problems related to your symptoms through a ultrasound
scan. plenary of water to avoid urinary symptoms.
coming to arthritis
depending on your age and severity of the symptoms, operative procedure might be need in areas like knee/hip joints etc.
next time please mention your age for better approach to suggestions.