Help - I'm being eaten alive by some little creature - need solutions and advice

[Flyfodder]

I am being absolutely eaten alive by something. I never see it. My ankles, behind my knees, hip, back are all covered in bites.
I've changed bed clothes etc. I wear long sleeves and legs on my PJs. I haven't really been out for a walk in nature but would cover up if I was.
One DC is similarly bitten. DH and other DC unaffected.

What are they?
What can I do to stop them biting?
What can I do to stop to bites itching?

Photos attached. Apologies, they're not nice. One is my ankle, one is my hip

Bird mites.

Do not Google. I still have nightmares.

Just get someone in to "clear the gutters" and tell them you don't mind if they accidentally disturb any nests.

Bedbugs I'm afraid. I picked them up on a ferry whilst island hopping in Thailand. They always bite in clusters of three and the bites become quite raised and sandpaper like after a week or so. They also take about a month to heal and disappear. This looks textbook bedbugs to me, but confirmation of that will be when they get redder and really sand paper like.

Indorex is your friend here. Several treatments over a few weeks should your issues out. Well that and de-flea the dog! Flea collar, or drops on the neck and comb them too. Be ready with a jug of boiling water to dunk the comb in to kill off any lodgers and persevere!! It takes a while to get rid of fleas because of their life cycle.
And take anti-histamines if you are finding the itching hard to live with. Hope you get sorted soon.

To add, it's not fleas! The clustered bites are incongruent. They say that bedbugs take breakfast, lunch and dinner in one sitting. If you've ever been unfortunate enough to be afflicted with them, you will know this is the dreaded bed bugs.

DDog had fleas last year - they can pick them up anywhere another infested animal has wandered. Fox / cats in your back garden. Anyway, thank God we have no carpets downstairs and I caught it quickly. DDog got combed with the nit comb, house got hoovered to within an inch of its proverbial life & DDog's bedding went straight to the tip (as likely place for eggs to drop) and we got some flea treatment from the vet. None since.

I would say fleas and we had them in the kitchen which our dog picked up from a holiday cottage! Had to get the house fumigated

To check for bed bugs aren't you supposed to look for black marks round the edges of the sheets or in the seams of the mattress? I hope it's not that.

Bed bugs. The lined bites are give away. My husband never had bites or rather he didn't react to the bites so never had bite marks. But we had them, blamed mosquitoes for ages

I had this. Only one in house to get bitten but it was horrendous.

Indorexed the house house to within an inch of its life. Sorted it out.

It was fleas btw!

Could it be urticaria?

Dunno why people are suggesting urticaria and bed bugs when the OP has updated to say that the dog is literally crawling with millions of fleas ..

I mean, if it walks like a duck and quacks like a duck ...

All my previous dogs were always picking up fleas and I'd treat them with stuff from the vet regularly, hoover, treat the house - basically all you can do is keep on top of it, you'll never get rid of the buggers. But dog I have now (who has a very close coat) never seems to pick them up. I thought it was just because she's an unsocial bugger who never goes near other dogs - but dogs can pick up fleas from undergrowth on walks, so I was a bit baffled. Was she a veterinary miracle?

Then I worked out that, since I've had her, I've moved to a house with hard flooring. We have tiled floors throughout, and only machine washable rugs. And no fleas, because there's nowhere for them to hide. So I'm blaming carpets.