Respectful recommendation, read the British Medical Journal article as advised by Cynthia14. This is a very excellent summary of my own experience as Practioner during the height of the Covid-19 pandemic. Most likely you may be somewhat disappointed, because presently there is NO Precise cause of PACS (post acute Covid syndrome). One big hurdle has been over come. Recognition, has been established in the US, Great Britain and on their countries. Some governments are beginning to fund(give money) scientist to investigate this disease(entity). However, I believe we are in the very early stages in this process.
The single most frequent recurring themes that are reported in this support group is “Frustration”. This should not be construed as a criticism and in fact is to be expected. I am very frustrated, even in the face of years of medical practice and scientific training (MD PhD).
The second most common feeling can be described in one word: Dismissal.
A major cause of “dismissal “ is conveyed by some Practitioners and occurs because there no known or precise answer to all of the symptoms reported by each patient in our group. We simply do not have an answer for every disease process known to humankind. Many will encounter “dismissal”, but do not give up, sharing of information is key to science and for this I am thankful to read each and every ones experience.