Right on, Hadasah! Look how low your calories got and now you know your solution, eat more! I've been trying to tell people it's that simple.
Here's a method to help with your digestion and lack of hunger if you feel you'll need it. It's called doing a Mono-fruit Island, eating one kind of easy to digest high-calorie fruit in sufficient quantities for a number of days to jumpstart your digestion and correct other health problems.
I'm going to try it soon since I'm a little like you and my digestion has never been great and has not self-corrected since getting off my horrible high-protein diet that had jacked my digestion up even worse.