As I've stated in my 1st question post yesterday (and thanks to those of you that responded)- I have an issue I've been dealing with the last 5 years, but last 3 months it flared up so badly, that I haven't been able to drive, or walk more than around the house a little bit at a time. No real diagnosis except for possible SI joint dysfunction. negative lumbar and pelvic MRIs and hip Xray. To recap my symptoms are:

-sharp and dull pain deep inside lower right back/hip, on and off
-pain in lower right back when I extend my right arm & abduct it to the right at all (this one is baffling cause it's seemingly not connected but I can feel it "pulling" on that lower right back/hip area.)
-cramping burning pain in hamstrings/back of legs, sometimes to mid calf
-both sides of groin feel like groin pull injury (no actual genital pain)
-Cannot twist to the right at all, without pain
-also I get a dull pain sometimes when walking directly below the ribs on my right side. Not all the time, and not terrible, but dull. this has been happening since it first happened.
-small pockets of muscle spasms all over right leg, mostly while sitting

sitting and bending forward is generally to only thing that offers some relief. Laying down generally feels ok as well, after it calms down.

Not having a certain diagnosis has been very difficult. Therein lies this question- Because the pain is particularly bad when I walk more than 20 steps (especially the massive cramp feeling in my lower right back and hamstrings/calves) is it advisable to continue walking further and further in an attempt to get better or rehabilitate this is someway? Is there a diagnosis that it would be inadvisable to keep doing this as a form of rehab? PT has been ineffective because they don't know what it is either