And yet there are medicines that cause you to bleed from your asshole... And that's not even the worst side affect one can experience from a substance that is intended to improve their health. Yet physicians prescribe them still.
Doesn't seem to live up to the hippocratic oath to me.
Know what also does that? Untreated sicknesses. I doubt you even read the hippocratic oath but it doesn't say 'do no harm' else no surgeon would take it, it says treat sick folks 'to their benefit'. I dunno about you, but I'd not mind rectal bleeding if the alternative was a necrotizing fasciitis going untreated.
I don't know if you're being contrarian for contrarians sake, but here's the gist of it:
Every side effect is measured against positive effects in comparison, with the least side effects being reversible cosmetical changes, the most being death. Then, the frequency of the side effect and it's harmfulness is measured up against the illness we're treating, for example, a 90% of causing headaches and vomitting is an acceptable risk if the illness causes blindness. Similiarly it's ok if it causes a 1% rectal bleeding which is nonlethal to most, but still cures an illness that has a 10% or even 1% chance of making you blind.
Also, if you are talking about vaccinations in specific, listen up closely, because this bit is important: The only side effects a vaccination can give you is what the illness already would have given you anyway. (excluding rare allergic reactions to be precise). So basically, to get anal bleeding you need a vaccination to some serious gastro-intestinal infective diseases, which by the by can cause death through dehydration in old people and infants.
but isnt it a little strange that im being bothered with "annual asthma check letters once in...half year and a guy who went there(days later than i did and agreed to doctors offer to use the new, better one) and he told me he already had 3 letters saying "come back and leave feedback" in 2 months time?
Hey, not gonna lie, it is a bit odd, I got no clue what health system you act in and some of them are corrupt. I'm just telling you not to overthink these things either, what stops you from giving the new thing a try and saying it's crap if it is.