Altitude sickness

Does anyone know if Altitude sickness is yet another symptom/side effect of PD. Since being diagnosed my wife has stated to experience it especially on long haul or night flights

 

i got very very very severe sea sickness for the first time and put it down to the meds. i think sickness on flights is more to do with motion sickness rather than altitude as the cabin is pressurised. i havent tried them but motion sikness pills might help if they are not contra-indicated.