Eeek. I'm sure it's very stimulating, but I'm not sure I could bring myself to go that far!
It's funny, because DH has been complaining about having lost his temperature control, and has been feeling cold a lot of the time - since about Christmas (not now... Now we're all melting). And he's been a bit wobbly, achey and headachey too, and really, really tired (I said it sounds like he's going through the menopause 
) . He even spoke to the GP who did blood tests around Easter and said basically "sounds like it's a virus" and wasn't worried. It did go away a bit after his first jag, which he assumed was just coincidence, and that was it going away, but came back a couple of weeks ago, so we'll see if his second jag today sorts it again. It's odd, but we were wondering if he actually had totally asymptomatic covid (or some other virus) that has manifested as these post-viral symptoms several months later. Though how you can tell if it was undiagnosed asymptomatic covid, vs not having covid at all I have no idea!
I'll suggest he goes for a swim in the Forth. See how that goes down..