 [ Symptoms ] whats c o p d since i had type 2 respiritory fauilure 15 months ago ive always been asthmatic and im constantly out of breath which limits what i can do my peak flow this morn at my doctors was 240 from 3 months ago it was 360 im a lady of 49 soon and a moderate smoker was told i might have copd [ Disease ] probably sitting on a nerve typically one gets severe back pain if the baby is pressing on a nerve i would recommend calling a doctor is office any assistant can answer you can also call an emergency just to confirm if this something to worry about   they will bring you in if they are not sure i called once when i had numbing down my left arm   and when my son ate some plants i knew nothing about   they are very helpful