I guess, everybody has different levels of emotionality and empathy! As long as you really really don't feel anything at all, and you wouldn't stop at nothing, I wouldn't get too stressed out about it!
We are exposed to so much information, tragedies, catastrophes on a daily basis. And many of us have quite a burden to carry. It's a healthy reaction to not let everything get to you!
Also, with the start of the common use of the internet there has been an overkill of constant self-presentation, including inflationary displays of exaggerated and fake emotions (because it looks so nice). Too much hugging, OMGs!, expressions of sympathy for anything and everything. It seems like a competition of goodness, that doesn't reflect peoples behavior in real life.
Therfore, many of us might have wrong expectations regarding emotions and difficulties accessing them!
As for lack of motivation, I recently overcame a long period of that! It was terrible!
If possible, you should accept it to a certain extent! Maybe you are really drained at the moment and your body and soul just need this mode to regenerate!
Nothing bad about it! Forget the competition and performance society!!!
Concentrate on the natural and basic things! Walk in honest nature as much as you can!
I'm not really into meds, but I also found higher (still safe!) doses of vitamine D plus K pretty helpful.