A Texas father gave heartbreaking testimony before a Senate panel detailing his 16-year-old son's death from heart complications following his first Pfizer jab.

In testimony to Sen. Ron Johnson (R-Wisc.) Tuesday, bereaved father Ernest Ramirez explained he was let down after trusting the federal government's reassurances that the Covid vaccines were safe and effective.

"I was the father of a 16 year old son," Ramirez said of his son, Ernesto Ramirez, Jr.

"A single parent. I raised my boy since he was a baby. He meant the world to me. We were always together. He was my best friend.

"We got the Pfizer vaccine because I thought it would protect him. I thought it was the right thing to do. My government lied to me. They said it was safe, and now . . . I go home to an empty house. He was my baby boy.

"They need to stop pushing this on our children. I lost mine. You need to protect yours. I love the hell out of my country, but I don't trust my government anymore."

Elsewhere during the panel, Lieutenant Colonel Theresa Long described how she had to ground three pilots for COVID vaccine injuries.

"I saw 5 patients in clinic, two of which presented with chest pain days to weeks after vaccination and were subsequently diagnosed with pericarditis and worked up to rule out myocarditis," Long said.

"The third pilot had been vaccinated and felt like he was drunk, chronically fatigued within 24 hours after vaccination."

"After I reported to my command my concerns that in one morning I had to ground 3 out of 3 pilots due to vaccine injuries, the next day my patients were cancelled, my charts were pulled from review, and I was told I would not be seeing acute patients anymore, just healthy pilots there for their flight physical," Long said.