Need help from you how to slow/stop the weight loss

You're petite - at 4'11" I'm not surprised that you are in those small sizes. At 5'3.5" I would tower over you.   I would still check in with your doc and get labs run to make sure your vits are in range.

I find that when I approached goal/normal weight, the best weight is more individualized to your % body fat and not just your weight.

Adding extra calories and taking some digestive enzymes together with that food helps. 

More slider foods - more cooked starches - with added good fat will help you get them down. 

When you can't eat enough - drinking with food byt making sure you chew that very well can help. Stay away from fillers - like raw veggies - they take space without adding enough calories. If you want fresh veggied - juice them - adding some fruit juice (not too much if you dump) to drink during a meal. 

Easy way to increase calories are nuts - Raw nuts - need to be sprouted - Google how to sprout that. That is really important. 

Losing size may indicate you are losing muscles - not good. Proteins + fats (avocado) plus starches... 

Get check for parasites.  

Good luck. 

Fats come to mind...sauté your meats and veggies in good butter or coconut oil, eat nuts, avocados...but after reading about this rebound thing, proceed with caution!

Thanks to all who've posted I feel better now and will continue on with this journey, oh and that it is!!!!!