This is really for @Rob_le_Pest as it is rather unpleasant and gruesome. For the rest, who may have some useful info to impart, welcome to comment but you have been warned.
All my life I have been plagued by excessive catarrh. Got it from Mum. This has been much worse of late as I fight my way to recovery from cold/flu/bronchitis/asthma. I have always had to, as discreetly as possible, frequently expectorate. Spit is the politest version of more frequent expressions of the word.
Thus I have small pots, usually ex yoghurts etc. dotted strategically around my lifestyle. One in each car, one by my bedside and one on the table alongside my computer, the one most frequently used. Most of them quickly dry out and can be tapped empty into the bin, but the one by my computer never gets that chance. I know I should swap it more frequently but it is a case of out of sight out of mind, I can only reach it at a stretch so others can’t see its real purpose.
As I used it this morning to my horror I saw a load of tiny white maggots with minute brown/black heads writhing about inside. My first and real horror was that they had actually come from my lungs, but now I think this is not the case as non of the other pots are infected, but they are dry anyway, so perhaps not much re-assurance.
I am hoping that they come not from me but from the environment and, specifically, because I don’t change this pot more often. I will from now on. What are they? Flies, moths, beetles or…?
Edit: BTW, the pot in question previously contained a powder prescribed for my wife to mix with water to make a gell, safer for her ingest than pure liquid.
Further Edit: I have seen them before, congregating on the edge of a lidded bucket outside in the garden which itself contains another bucket with the dogs’ shit bag in, prior to sealing for the rubbish bin.