When someone has severe COPD with lower levels of oxygen, cramping is certainly possible. I would,suggest speaking to your physician to see if they can give you something to relieve this cramping.
thank-you so much. i didn't know and thought it would be crazy to even ask that question. the dr. i just started to see, has no time for any questions and i just don't ask. so thank-you again. i will find another dr. that will allow me to ask questions.