NASHVILLE, Tenn. -- A middle Tennessee veteran -- who was first told he had HIV and hepatitis B after having a colonoscopy at the Murfreesboro VA and later tested negative -- has now received positive news.

A third independent test proves Mike Priest is clear of the infectious diseases, but he's lost all trust in the Veterans Affairs system.

"A lot of relief," said Priest. "Really was. There was a lot of stress and tension still."

The past few months have been stressful for Priest and his wife, Porscha, after the VA called to tell him he was infected with HIV and hepatitis B following his colonoscopy at the York VA Medical Center in Murfreesboro last June.

"My heart just fell right into the bottom of my feet," said Porscha Priest. "(I was) just sick to my stomach. I just couldn't believe it."

Mike Priest's mother died from colon cancer.

"Yes, there is anger over it. That's just something you don't expect. I mean, I went in for a very serious reason," said Mike Priest, a Navy veteran who served in Vietnam.

But a few weeks later, the VA called back to say he was fine.

Priest was frustrated and confused. He finally had independent testing to be sure of his health.

"This really, totally ... I lost my trust for them," he said.

And he isn't alone. Dozens of veterans have called attorney Mike Sheppard for help.

"The common opinion of all the veterans are they can't trust the Veterans Administration, they don't know what's going on, they're scared and the impact on their family has been extreme, and they feel let down," said Sheppard.

Wednesday's hearings in Congress revealed even more problems. A report from the Office of Inspector General revealed surprise inspections at 42 VA facilities last month: Only fewer than half had proper training and guidelines in place.

"We served. They asked us to go in harm's way. We went. They promised to take care of us, and this is not a proper way of taking care of our veterans," said Mike Priest.

He is so disappointed in the VA he recently changed over to a private doctor and has no plans of returning to the VA for medical services.

Channel 4 asked officials at the Murfreesboro VA specifically what has changed since discovering these issues last December. They said the GI equipment is now cleaned through a high-level sterilization process, they have started using new cleaning tools that allow more efficient cleaning of reusable components and they continue to provide training to staff to make sure the manufacturer's instructions are followed.