Pain due to blastocystic hominis infection. Stool sample to lab will confirm.
Tends to be a highly resistant parasite. Repeated treatment with correct medication required.
Yes, your symptoms could be from Blastocystis.
Search google for 'badbugs'. It is a website (which sells nothing) dedicated to this bug and another, both of which many people are suffering with. It is run by a women who had both for 8 or so years... There is information on the Medication you need to treat it.
It DOES NOT respond to Flagyl anymore. That is OLD science.
If anyone has so-called 'Irritable Bowel Syndrome' they should DEFINITELY be check for it. This bug can fully be the cause, (of course not the only one).
You absolutely must find a lab (not a hospital) and get checked with a
'3-Day Stool Test WITH Fixative' This is crucial. The bug dies quickly outside of the gut and so a fixative (preservative) is required to keep it until studied.
More research must be done, this bug is becoming more and more common....so is "IBS". While I don't believe that ALL cases of IBS are caused by Blasto, I do know that many, many are. It's worth getting checked to all who haven't. Take care.
I would also like to ask Dr_BS_MD what you know to be effective in treating Blasto?