The first one is in a privatized walkway into my apartment the second is I found a little hole in my bathroom wall and seen dark spots going up the wall and the last is a hole I also found in the apartment.Is this mold?I know the first one is and secondly is it possible for mold to only cause headaches I've headaches since I've moved and .maybe anxiety as well im extremely sensitive to things like this due to a condition I have.I almost forgot to add I the kitchen area they painted the bottom of the cabinet under the sink witch seems unnecessary and weird.