Thank you for the query.
Left lower abdominal pain
with bloating is most likely caused by diverticulitis
. This disease is strongly associated wit constipations so if you have had any this is very possible. Any other reasons of such symptoms are urinary tract infection
, urinary tract stones, ovarian cyst
It is advisable for you to have some tests. Abdominal ultrasound, full blood work, urine analysis, CRP level should be performed. If inflammation is present, you should have antibiotics treatment and after few weeks colonoscopy performed.
Hope this will help.