Last night I was having a heck of an awesome run. Made it all the way to floor 5 with Green Envy. My 4th floor boss was ShrapnelRose. By the time I hit her, I had 41 max health, and she knocked 12 HP off that by the time I killed her, thanks to my own miscalculations about where I could move without getting hit.
So I go into floor 5 with 29 HP of 41, expecting to find plenty of health pickups to recover from that. And what do I find? None. Tons of credits and XP drops and some fairly nice items, but not a single health pickup. Is that normal for 5th floor?