halfway through IMRT

Halfway through pre-op radiation.  So far, so good, I guess.  Felt a bit nauseous, which I wasn't expecting, and the positioning on the table throws my lower back out a bit.  Sometimes I think if I experience any side effects it must mean I'm not doing something right.  Strange, huh?  Probably just my way of thinking I have some element of control over the process.   All I really do is show up.    Anyway, I have anti-nausea meds just in case.  Before this, I didn't know there was such a thing as perscription meds for stomach upset --- I assumed they were all OTC.  Shows how much I have the opportunity to learn here. Trying to stay in the day.