OCD

I havent been diagnosed but i think i can see sum symptoms in me like forgeting if i closed the door and even if i check ill still check 4 or 5 times , when i go to wash my hands , when i check if the stove is off and too many other things and all of them got the same 4 or 5 times checking pattern Should i go see a doctor and any advices ?

I have ocd I feel like I'm in my clean pupple if someone touched me or touched anything of my stuff i might cry i really get upset and frustrated and disgusted and i want to hit that person really hard for just touching Just because iam not sure that this person is clean But on the other hand I just feel like that with my family I don't really feel that with my friends Maybe my family is really disgusting and i don't have a problem? Can someone tell me if they had a similar experience