I have the same thing at night with the sweating. I also am without heat at the moment (though luckily it is likely not as cold here) so I’ve been wearing winter clothes indoors. At night I start out so cold but then wake up sweating haha. It is bizarre how this happens.
About washing clothes by hand, I do not know if these are available where you live (if I remember correctly, you are in the UK), but there is something called a “washing wand”. I don’t think it allows me to post links in BB forum, but just google “RV washing wand” or something to that effect. It is this big blue thing, it almost looks like a plunger, and that’s essentially what it is, but it’s specific for washing clothes. It’s nice because rather than having to squat down over a bucket to wash your clothes, you can comfortably stand up and just kind of plunge them up and down to get them clean. And the plunging action is able to get the clothes cleaner than is possible by hand. Of course, this would not be useful if you are washing in a sink, it’s made for more if you are washing them in a bucket or maybe a bathtub (something at ground level).
Finally, you might try finding yourself a good 5 or 10 gallon bucket. Like the generic orange ones that Home Depot sells for $4 or so (those buckets are 5 gallon.) I washed my clothes by hand for years in a 5 gallon bucket that I would sit inside my bathtub. It was always just a tad too small; 10 gallon doesn’t look much larger, but it is a much better size.A decent-sized bucket + plunging mechanism can be a vast improvement over using something like a sink or a bathtub, because you can do more at once so it takes less time (and in a bathtub, it would be very difficult – lots of water covering a large area, and difficult to get near it to do the washing, vs. the water being able to fill up a bucket so that the clothes can soak inside it.) I did not have the washing wand back then, and I think having one would have made life a lot easier because you can stand up.
One thing I used to do was let the clothes soak in the bucket for about 30 minutes before I started washing and I always found they came out smelling much nicer.
Also remember that clothes need enough space and agitation to actually get clean – if they’re all shoved in a small space they won’t get clean, which is why I finally settled on a 10 gallon bucket. And agitation is the other key (which is why I mentioned the washing wand.) None of this was obvious to me when I started washing clothes by hand which is why I mention it.
I hope you are able to use your washing machine again soon. Washing clothes by hand is very time consuming and can be physically painful on the joints if you have to squat down or bend over to get to the bucket. That’s why I recommended the washing wand, it might help. (But hopefully this situation will be resolved soon, so maybe that is not something needed.) Just remember to take it one step at a time with these problems. Sounds like a mess. But slowly but surely, hack away at each of them. The water, being sick, the heat, clothes washing, it might take a while to get it all sorted but remember it isn’t permanent. and you will get things fixed up
sorry for all this info, it took me so long to figure out some of these tricks for washing clothes by hand so i just thought i would share, and save some of the mess i went through