I've recently started pilot training and Im searching for some advice regarding eating habits. Typically I fly for ~3 hours, however I limit my eating until after I am finished, as in my first day of training I felt very nauseous and became sick. So to avoid nausea typically I eat half a banana/ few biscuits at most to carry me till around 3pm.
It has been a few weeks and I now realise my habits are unsustainable as I become too exhausted and tired to revise my day's practice and churn through theory study. I understand I need energy so I can remain functional but I am anxious that I won't be able to keep my food down. I haven't been travel sick in the past while driving or in a commercial flight.
I would appreciate advice or things you may have learned through experience as I fear my eating habits thus far are limiting me with my concentration and keeping up with my studies.
Thank you for your time to read this