Hi Beccalynne, and thank you for your post. 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.
Based on what you've shared, it sounds like you have been provided with a suitable medication regimen for the treatment of your condition (emphysema). The use of Trelegy, nebulizer treatments, and a rescue inhaler is a well known approach to the treatment of COPD. As well, you have shared that you are using supplemental oxygen around-the-clock.
Sometimes, when a patient (such as yourself), is not getting suitable relief using this approach, it may be time for a reassessment from your diagnosing physician. It is possible that an adjustment to your treatment plan may result in your feeling better. You may want to reach out to discuss this with your physician. The doctor would want to know that you continue to have difficulty breathing even though you have been compliant with your medication schedule.
What do you think?
Wishing you well,
Leon (site moderator)