Possible cor pulmonae.... at least with me. A type of right sided congestive heart failure not uncommon in COPD patients

U need water tablets + try 2 move around as much as poss.my legs used 2 swell real bad wen i wasnt so mobile x dont lnow if this helps or not m8 x sendin my luv x 💛💚💙💜

That could be either lungs or heart. Suggest you get it checked out PDQ before it becomes a big problem.

James are you retaining fluids