I have chronic plantar fasciitis & metatarsalgia for 2 years, got worse 6 mo ago. Normal X-Ray & nerve test. Would MRI be useful at this point?

Probably not. Plantar fasciitis can be chronic and very difficult to get rid of with conservative care in some cases. There area lot of treatments including orthotics, physical therapy, laser therapy, ultrasound therapy, dry needle therapy, platelet rich plasma injection, night splint, walking boot, non weight bearing and many others. Surgery is also very successful if all of these fail.