Suggest Treatment For Painful Bruise On Lower Leg

Hey I was being a idiot and hit my lower leg on the top of a kitchen chair. It s been two days thinking it would be a bruise I let it be. But it s been two days and my feel a cold sensation sometimes when I walk. When I hit it I didn t hear a crack. I just had a bruise like pain. With a little bit of a sharp pain but not to painful. I just got up and brushed it off and iced it for at least 1 hour and 30 mins. I touch my lower leg and it feels numb with a bit of bruising pain.i feel my bone but it s all in line I don t feel a crack or fracture. I ve looked up my symptoms and some say its a blood clot and that you could die from that. Is it serious to a point where I need to go visit my doctor??