Long story short> I'm on some medication that could have very bad side effects. Just after an hour into the mass (immediately after collection). I started feeling very nautious, pains in my back, and I also felt lightheaded and as If the ground was moving under me. This was happening for about 30 minutes, at times I felt that I might faint. Generally I felt really bad, and I left mass early, out of the fear that something could happen to me, and returned home.
Now it's 2 hours after and I still feel rather bad, but alot of those symptoms have now passed.
Was leaving mass in this situation sinful? Please advise,