I was eating some candy and was licking part of the chocolate. I then feared that I bit my lip and was bleeding.I checked several times and did not see blood. However, after finishing, I noticed that there was actually a quite noticeable amount of blood–it may have actually been caused by the checking/rubbing my mouth since I did not see it beforehand. If that blood HAD been there while eating and some had gotten onto the food (so left my body) and then I ate and swallowed it, is this a problem? I feel like I made a huge mistake by continuing to eat even after fearing there may be blood.
It is impressive to see how careful you are with all of the halachos!
There is no need for you to be concerned. You checked for any blood and you did’t see anything. There is a rule, “the torah was not given to angels” meaning that Hashem does not expect us to do what is above human capabilities. If you checked the chocolate with your eyes and didn’t see it, then there is no need to worry.