Intense exercise and weight lifting will benefit from adding back in carbs, but nothing is necessary
If you like what you are doing, stick as close to it as possible because what is most important is adherence to diet/lifestyle
If you dont want to lose any more weight you are just going to have to eat more. No other way around it. Maybe do what you are doing but add in 1 carb focused meal...maybe something as simple as adding a bowl of oatmeal for breakfast
Be aware that if you do add back in some carbs, you will probably gain a few pounds due to water retention. This is not a bad thing, your muscles will actually likely take on a more appealing shape during the process.
Long story short....find out how many calories you are averaging daily. Add back in 200-300 calories and give it a week. If you are still losig weight, add some more. If you are maintaining, then keep that calorie level going.
Congrats