Eric Clapton detailed his “disastrous” health experience after receiving the Covid-19 vaccine and blamed “the propaganda” for overstating the safety of the vaccine in a letter the guitarist shared with an architect/anti-lockdown activist.

Clapton previously shared his thoughts on the Covid-19 shutdown when he appeared on Van Morrison’s anti-lockdown song “Stand and Deliver” in December 2020; two months later, in February, Clapton received his first of two AstraZeneca vaccinations, he wrote in his letter to Robin Monotti, who shared the letter on his Telegram with the guitarist’s permission. (Rolling Stone has confirmed the authenticity of the letter. A rep for Clapton did not immediately respond to a request for comment.)

“I took the first jab of AZ and straight away had severe reactions which lasted ten days. I recovered eventually and was told it would be twelve weeks before the second one…,” Clapton wrote.

“About six weeks later I was offered and took the second AZ shot, but with a little more knowledge of the dangers. Needless to say the reactions were disastrous, my hands and feet were either frozen, numb or burning, and pretty much useless for two weeks, I feared I would never play again, (I suffer with peripheral neuropathy and should never have gone near the needle.) But the propaganda said the vaccine was safe for everyone…”

In the letter, Clapton also discussed discovering “heroes” like anti-lockdown U.K. politician Desmond Swayne as well as similarly-minded (and some would argue conspiratorial) YouTube channels.

“I continue to tread the path of passive rebellion and try to tow the line in order to be able to actively love my family, but it’s hard to bite my tongue with what I now know,” Clapton wrote.

“Then I was directed to Van [Morrison]; that’s when I found my voice, and even though I was singing his words, they echoed in my heart,” Clapton wrote. “I recorded ‘Stand and Deliver’ in 2020, and was immediately regaled with contempt and scorn.”