would increasing pred help

You may have hurt yourself with the fall - I have fallen in the past and it was the final straw for my back muscles and I developed whiplash. 

You could try a higher dose - just once and see if it helps. But a doctor's visit sounds called for. 

It seems to me Margaret that you should go to A & E.  It doesn't sound as though upping your pred will help - that is mainly for inflamation.  You might have done yourself some damage that should be checked by a doctor.

I think it best to go to Dr.  You may need xrays.

I agree with the others, especially as all was well until you fell. The fall, combined with walking and lower Pred, may be too much for your system to cope with but you may also have done some other damage which needs checking out. You must feel gutted but the sooner you know what's going on the sooner you can get back to where you were. You've proved you can do it once and that's what you need to hang on to. Please let us know how it goes. Hugs in the meantime (gentle ones!) 

Marharet89358, I agree with everyone else get yourself check out, upping the Pred, if you have hurt yourself is the wrong thing to do!

Hang in there Lady!

Margaret - sorry to hear that you had a fall.  Others have given the best advice about going back to your GP/MD for a check up.  One of the pitfalls is, as you feel better and start to exercise more, you tend to overdo it and assume you can go back to where you were pre-PMR - I know I had the same results (without the fall) and had to start a plan that increased my exercise 'very slowly' sort of DSNS for exercise.  As an aside once you are free of pred. you still have to take it easy in you exercises because the muscles still need to get back to 'normal' which will take some time.  I reached Zero in January 2017 and am still pacing myself!