This is a very minor nitpick, but I feel like if you said you were majoring in Nursing, you shouldn't take a hit to Mental Health for watching your blood get drawn. If you can't handle seeing your own blood drawn, how would you have any hope of one day drawing someone else's?
I also noticed a fairly major bug with this choice. On the page after choosing to watch or look away, if you go to your profile and then return to the game, it seems to trigger the MH change again. For example, if you were at 100 MH, choose to watch your blood get drawn, and then open your profile, it'll show your MH at 90. However, after returning to the game, if you open the profile again, it'll now show your MH at 80. You can repeat this over and over and drain your MH down to 0. The same thing happens if you choose to look away, but instead it raises MH every time. So far, this is the only MH change that seems to have this bug, and it only happens if you click "return to game." If you open the menu and click "go back," everything works fine.