corey goddard

it overheated on me and was steaming friday, got it back home same day, put a new thermostat in and all was fine until today. As i was getting off the interstate the temp gauge went up to about 3/4 hot but as soon as i stopped and let off the gas at the end of the exit it almost instantly went down below halfway where it normally stays, the fans are kicking off and on when they are supposed to, im not losing any water at all, its fine if its idle and i drove it around for 20 minutes or so not going over 40mph and it never even got above halfway, i thought it might be the water pump but if its not working it shouldnt matter if im idle or going 70mph. Id be very thankful for any help or insight.

the reason i ask is because i worked at an agency who provided services to people with mental disabilities. One patient i found out had hep c, we had access to some of his medical history but it was only basic information. This patient would get violent towards staff and attempt to bite staff as well and it was well documented. i know and respect privacy laws and i seen proof for myself(though it was something i was not meant to see). Someone told me if his status was disclosed it would be a violation of hipaa laws. Is this true and if it is, are there any special circumstances regarding patients who have a history of violence towards others?