Is it normal that i care a lot?

People say I'm too sensitive and take things too seriously. I always like helping other people like if someone asks me a question, I'll try to give them as much advice as possible, if someone is short on cash and needs a ride home, I'd lend them money. When I see people walking their dogs out on the streets, I run up to them and pet them and talk to them like they're a cute newborn baby. I feed my neighbours cats and sometimes would sit with them, petting them and talking to them. I sometimes enjoy talking to old ladies whilst in the waiting room at the doctor's office. I even hold doors open for other people. I apologise a lot as well if they feel like I've got in someone's way when I'm walking or shopping. Is this normal or am I just a big sad wussy?