Michelle is correct. Your MRI report indicates that your disc located between the last lumbar vertebra and first sacral vertebra is herniated, and it is worse on the right side, with "significant narrowing of the right neural exit foramen." This means the little hole (Foramen) that should be clear so the nerve root can exit is blocked by stuff from the herniated disc. This causes pain.
There is also a slight problem at the same level on the left side which is possibly pressing on the left SI nerve root. This disc is apparently the source of your pain. (These nerve roots exit through the foramens and then bind together to form the sciatic nerve, the largest nerve in the body that runs across the buttocks and down the back of your leg.) The dermatome for the SI nerve root typically (meaning, for most people) runs down the back of the leg, slightly more to the outside than the inside...into the outside of the foot, to the little toe. The SI nerve root is responsible for pulling up the foot.
Unfortunately, with a pinched nerve, you can have tons of PT, massage, etc. but, in most cases, it is not going to "unpinch" that nerve.
Most on this board are going to suggest that you find a fellowship trained spinal specialist and make an appointment for a consultation. A chiropractor making adjustments could make your situation much worse.
Hope this information helps you to understand your situation.