I am having sever pain on the left side of my lower body from the waist to the left testicle? It was a pain level of about 8-9 out of 10 but has calmed down to a 3-4 right now. This has been over the last 1/2 hour. I have taken 3 Ibrufen 200mg tablets about 15 minutes ago.
Get the X-ray and screening done for possible renal stones.  This is the usual picture. Often burning micturition or pain while urination happen. It is a colic nature pain.  I suggest both USG and X-ray for diagnosis. Get investigations done with urine tests.