Stress-related stomach ailment, possibly

___ Samaritan (helpful person)4 What a car runs on, usually3 Month with a spooky last day, for short3 "Wow! You're ___ roll!": 2 wds.3 Like a thick forest (anagram of "needs")5 Free-to-play game revenue sources, for short3 Great ___ (Chimpanzee or gorilla, for one)3 Roller ___ (skating sport)5