Also, morphine is not just a pain pill. It also modifies the body's response and perception to breathlessness. So low-dose morphine can help. Meditation has tremendous power to reduce the symptoms. Breathing treatments (via Nebulizer machine) can assist. Walking and light exercise keeps the body active. Also, make sure an X-ray is done to see if there is fluid around the lung, which can restrict the lung capacity to expand, and that manifests as shortness of breath.
I hope this helps
Congratulations on your new baby, and being smoke-free for so long. It speaks so much of your tenacity and desire to live healthier and provide that for your children. Rest assured that the lungs do reward you when you quit smoking. I'd be lying if I said they would look like never smoker lungs, but their function improves over the years to close to that of
someone who has never smoked. Of course, this also depends on many factors such as the length of time one smoked in the past, whether there is any damage or scarring already done, but as a general rule, you can expect to have more breath capacity, more ability to self-clean your lungs from the debris of everyday breathing, and if you get a cold or bronchitis, you have much more ability to fight it off than if you were still smoking. I hope this helps answer your question.