New

Hi , and welcome! As you said, I see you are a new member here having joined today, much earlier this morning. We are glad to see you already engaging with the community through this, your first post.
Let me see if I can provide some of that support.

Thanks for sharing your present medical situation with the community. You may be aware we cannot provide medical advice or diagnostics over the internet (for your own safety), but your concern certainly warrants a reply.
Is there anything you can think of that has changed (in your life/lifestyle), that might account for the difference in your capabilities from 3 years ago to the present time?
You have shared that you have both COPD and pulmonary hypertension. Both of these diseases can cause shortness of breath (SOB). You've also shared you are using supplemental oxygen therapy. Do you find the oxygen helps with your breathing?
Are you being followed by a physician? Is the doctor also aware of your mental fatigue? Do you think it would be beneficial for you to discuss (the concerns you've shared here), with your private medical doctor?
Please do let us hear back from you - we have a genuine concern for your good health.
All the best,
Leon (site moderator COPD.net)

Hi, , welcome!
A few things that helped me after my breathing got worse were to start pulmonary rehab and changing some of the things that I was eating. I remember when people would suggest that to me I thought yeah, right, I can't even walk 10 feet without getting sob, how do they expect me to exercise, but it did help me so much. I went to low-carb and a few other food choices and that alone helped with my breathing. Of course, we are all different and you will have to talk to your doctor about this. I'd like to share this article with you that I wrote to explain what helped me. Like I said be sure to talk to your doctor before trying anything new. I hope this helps. Best, Jackie (Moderator) https://copd.net/living/alpha-1-diet-exercise