I have just started a photography course at my college, and we are learning to develop/print our b&w films. I know alot of people have difficulty to begin with in the pitch black of the darkroom, but I am ok with that...in fact, i found it a snap! My problem is with the red lights. The lecturer turned the print room red to let us see what its going to be like for us to work in, and i felt pretty ill. I felt dizzy and my stomach was churning. I left the room and went into the corridor, and after a few mins I returned to normal. Is it a common problem, and if so can anything be done? I feel like a right numpty! Thanks in advance.