Retirement tax questions

During divorce PSA I was given money from an IRA transfered to another IRA in my name only. How about when I took out the money after I was 60 to use it to buy a house.  It was not income that I was able to live on.  Is it taxed at the full amount as if it was income I earned?  Also need to know if that amount of money counts as income that puts me not eligible to receive subsidies on Health care . gov and I have to now pay all of it back???? I qualified for subsidies because my actual income was very low and I qualified,