Well although ice is a slang term which can have many different meanings, there are stimulants which can cause effects (rapid heart beat) for 12h and longer. The swelling of the feet and legs I suppose would indicate poor bloodflow. Are there any other signs of poor circulation? Tingling, numbness, coldness, lack of skin colour (blue/white), poor capillary refill in nail-beds, etc? Either way if you think you should go see a doctor it would probably be a good idea and nobody on the internet can tell you you are definitely going to be okay (it wouldn't be a good idea to listen to them either).