Answer to question:
1099-MISC
I managed to delete schedule C; but I noticed in comparing the amended return with the original return that, rather than showing that I had received $650 in this 1099 – MISC, it showed the increase in income to be $1100 plus. I didn’t notice this until I had already filed my amended return and it was already accepted. I was charged $144 more tax as a result of this $650, which makes me think that the calculation was made as though Schedule C was included.
The $650 income was neither a business nor a hobby; but I was in a medical test with my retina specialist for three visits, one per month.
