I recently came on this site to find out what is wrong with me. I too am passing these yellow bean or egg like things since I returned from a trip to Texas. I thought I had eaten bad seafood or something. Saved one in a sealed jar with a tiny bit of water to see if anything would happen. It eventually turned to light yellow slime before I could take to my doctor. The next time I put in dixie cup to see what would happen. It dried up and is like hardened ugly jelly bean. So nothing has "grown out of it". Was going to make appt. with gastro MD but all many said their MD did not know what it was. If I fin out, will write again.