Can seborrheic keratosis appear as a tiny black, slighty raised dot? i have one, which i've scratch a tinier black dot off & it grew back twice.

It's possible: It's possible that a seborrheic keratosis can appear as a tiny black raised dot. They tend to recur after being scratched off. However, other growths can have these characteristics as well, such as moles or skin tags. Although more rare, skin cancers can behave like this. I would recommend having it evaluated by a dermatologist.