lop-sided flexibility?

Has anyone else dealt with differing flexibility on one side of their body? my left side is significantly less flexible all the way from my ankle to my shoulder and down to my left wrist. things involved are: my ankle, calf (specifically lower calf), hamstring, outer hip, lat, shoulder and forearm/wrist. i've been in and out of PT for plantar fasciitis and back spasms that have caused tightening in my left lower back and left hamstring for the past 8 months and damn am i getting sick of it.

i'm over the injury hurdle at this point and i know that i need to be more consistent in my stretching and need to start adding weight training to even out what i've lost. i'm pretty thrown off by how significant the difference is between left and right and none of my doctors or PTs have offered a good explanation (though i admit there might not be one). i'd love to hear i'm not alone or crazy.