Bloating-16- miscarriage

Okay I had a miscarriage 4 months ago. After that I've always felt drained and tired which is probably expected after what my body had just went through especially at the age of 16. I've also always felt really sick and crampy ever since. Here I am 4 months later and still constantly feeling abnormal. At times I start to get really sick and bloated and my back will start to ache really bad until the point I'm bawling. Ever since I went through that traumatizing point in my life not only was I emotionally hurt but my body still feels worn out. Any idea if the bloating, pains and the feeling of being sick all the time could still be from my miscarriage? even after four months?