Hello, since this has been a recurrent issue u need to be investigated. U could go for stool routine and microscopy n if need be stool culture too.
Next Steps
Is it that u consume outside food more often? How about your diet? Are you staying at a hostel or so? We need to rule out certain things here.
Health Tips
Hope the personal hygiene is being taken care of. It is better to use hot water after passing motions especially. Do take plenty of water n lots of fibre rich dietary sources too. Can help u further after the tests are performed