Update.
Hello, the research on CMV, EBV and vitamin C led me here:
Gastroparesis / SIBO
causes
- CMV , EBV and Herpex :
*https://www.gastrojournal.org/article/S0016-5085(09)63603-9/pdf
* https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2955404/
- A complication of some types of surgery – such as weight loss (bariatric) surgery or removal of part of the stomach (gastrectomy)
* https://www.nhs.uk/conditions/gastroparesis/
- Diabetes type 1 or 2
* https://www.nhs.uk/conditions/gastroparesis/
- Medication : some antibiotics, some antidepressants,...
* https://www.nhs.uk/conditions/gastroparesis/
- Hypothyroidism or consequence of low hormone production by the thyroid gland: Pregnancy , Puberty
(during Pregnancy for example: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3354841/)
* https://gi.org/topics/gastroparesis/
* https://www.ncbi.nlm.nih.gov/pubmed/12729400
*http://ijp.mums.ac.ir/article_2165.html
* https://www.medicinenet.com/hypothyroidism_during_pregnancy/article.htm#what_is_the_thyroid_gland_where_is_it_located_and_what_does_it_do
-Gastrointestinal lesions caused by radiotherapy;
Gastroparesis induced : Bad Breath /Bad smell,
*https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5503286/
*https://www.drstevenlin.com/bad-breath-stomach-causes/
*https://themighty.com/2018/05/gastroparesis-physical-symptoms-surprising-unexpected/
in some people expired gases such as H2S are expired in large quantities, and since it is an irritable gas, it makes cough and sneeze.
*https://www.ncbi.nlm.nih.gov/pubmed/27163246
* "Exposure to lower concentrations can result in eye irritation, a sore throat and cough," : https://en.wikipedia.org/wiki/Hydrogen_sulfide
* https://onlinelibrary.wiley.com/doi/pdf/10.1111/nmo.12867
Note also that gastroparesis causes malabsorption food of all kinds.
* https://gastrohealth.com/investigative-overview-gastroparesis/
*https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6188038/
etc...