Did my friend infect me with something through the bathroom sink? STD's, bacteria, viruses, etc

I dropped my contact lens in the bathroom sink 2 weeks ago, and about 2 days after that, the bottom part of my eyes (not the eyeball, but the skin) became painful and swollen. The white part of my eyes were also red. No pus or clear liquid.

Here's what I'm afraid of: my friend (who is sexually active) used the washroom to shower (and probably used the sink to brush his teeth, and rinse too) after "picking up" a guy at a gay bar the night before.

About 5 minutes after he was done, I went in to take a shower, and then after showering, I put my contacts in. Well, I dropped one of them in the sink. I immediately rinsed the contact with my solution (Amo Complete - how well does it disinfect?) using the "rub" method.

How likely is it that my friend transmitted (bacteria, viruses, etc.) something to me? Of course, it could be MY germs, but I'm not sexually active at all, so I don't have an STD.

This week, I got red eyes again after wearing my contacts, so I KNOW they are dirty

Did my friend infect me with something through the bathroom sink? STD's, bacteria, viruses, etc.?trojan

Those solutions aren't designed to kill viruses or diseases, so you may have transmitted it to your eye, because it is a very sensitive area and is easily infected.

Did my friend infect me with something through the bathroom sink? STD's, bacteria, viruses, etc.?abtuvurys 2005

You could have gotten soap or dirt on them.