Nope that's normal head shape for a resident river rainbow, probably a female, they have a bit more blunt/rounded head than the males. The males will have a bit more pointed jaw than females.
Good luck, hopefully your catch more than hammer handles
She cleans up well for being almost 30 years old. Getting ready to head up to the Au Sable for my annual two weeks of fly caught smallmouth & pike. One good thing about this year is my Nephew just started a new job last month so while it sucks he won;t be able to join us like usual at least I will now have someone to stop by the house daily to feed my fish and check my tanks while I am gone.