I'm a bit like that too Tegan. Also, I do not travel well - often ending up at the end of a flight with a severe headache I cannot shift and then suffer a bought of sickness. I sort of 'shut down' on a plane now, I just try to doze off and do not eat any of the meals, just sip water and do not watch the films, though listening to music or radio can take my mind off things. A friend of mine has invested in some expensive noise cancelling headphones that totally block out the cabin....I quite fancy that.
This latest flight is over night, so I shall be good and tired by the time I board, so I just hope I can sleep as much as possible.