a am a trained PD listener,
I am a PD patient - what meds do you take -if any?
it maybe many things -
do you research your meds or symptoms online?
do you have a movement disorder specialist?
actually it sounds like -abit like - multiple sclerosis -? *(my sister has this -she drags a leg / with a swing motion-has profound muscle lockup, and she has muscle loss.
Parkies usually do stairs well - they are goals -we can run - or sometimes walk fast with a differently timed gait.
I am not 90 - I was dxd at the age of 29 but that was when they believed I was too young for this - *I am...
my suggestion - 2nd opinion -different doctor?