I was thinking the same thing...probably just a hemorroid. Also, think back to what you have eaten lately. Red bell pepper, watermelon, anything with red dye...or something that you have juiced...strawberries, ect.?
Also, is it possible that you have mistaken it for an irregular monthly spotting?
Definitely check this with your doctor, but bright red blood is not ususally a cause for alarm, and you could be mistaking it for something else entirely.
It is never too late to make healthy changes, and I am sure that your body is healthy and fine...you just need to get this anxiety under control!:) I know you are working on it...and it does take time, and often things like this seem to put us back at square one, but it is going to be okay...you'll get this figured out and move forward again!
Let us know how you are doing soon, okay?
S.C.