CALCIUM!!!!!
Even if you don't think it is eclampsia, even if you don't think calcium will do anything - GIVE IT TO HER, because it won't do any harm and is the cure for eclampsia if it hasn't progressed to a medical emergency yet.
Eclampsia at its most extreme is obvious and a medical emergency, but what many don't realise is that it affects dogs at lesser degrees and extremes. Did your vet check her calcium levels when you took her in? Probably not, since most vets know nothing about breeding...

PLEASE give your bitch calcium - you will not get enough from ice-cream or dairy products, you need calcium supplements to be able to give the quantity needed. Do you have any Tums in the house?
https://www.amazon.co.uk/Strength-Supplement-Chewable-Assorted-160-Count/dp/B001IAPXSA/ref=sr_1_1_a_it?ie=UTF8&qid=1537913179&sr=8-1&keywords=Tums If not, go and buy some from anywhere you can that is open or ask someone to bring you some if you don't want to leave her - there must be a pharmacy open near you. In the morning, go to a pharmacy or health food store and buy some calcium tablets. It doesn't matter if you get calcium carbonate or calcium citrate - either are fine.
Tums are calcium carbonate and will need to be taken with food, so the dog can absorb the calcium. (Calcium citrate can be given without food.)
It's important to know that you need about
90mg of elemental calcium for each pound of bodyweight per day. As you are likely sleep-deprived and stressed: 1) Convert your dog's weight from kg into lbs using google. 2) Calculate 90 x [however many lbs your dog weighs]. This is how much ELEMENTAL calcium your dog needs, per day.
However, elemental calcium is not the 'whole' of calcium: For example:
Tums provide 40mg of elemental calcium for every 100mg of calcium carbonate in the Tums. This means a 20lb bitch could have 4.5 tablets of Tums. A 10lb bitch, half that.
You can dose this 4-5x a day, if her behaviour continues - it is fine to continue with calcium this high throughout lactation if you need to.
You should see improvement within 30 minutes of giving calcium. Do not underdose - it is extremely hard to overdose on calcium anyway during lactation and it won't be effective if you underdose.
If you let us know what your bitch weighs and what type of calcium you are able to get hold of, I'll be able to help you work out the dosage if you are stuck. Good luck...