I've had a stomach ache for the past 24 hours now. I have tried going to the toilet several times because I feel rather bloated, but I was only successful once (after much difficulty).

I have recently vomited up two white coloured things. I have no idea what they were. They were around 4 cm long, 1.5 cm wide, and 1 mm thick. The ends were rounded. They were rather hard to cut through with a toothpick. Unfortunately they have since been disposed of. I have no idea what these things or objects are. I have gone back over everything I have eaten in the past week and they do not look like any food I know of.