Sadness, constant headache, emptiness.

I am constantly feeling emptiness inside, loss of appetite, can't differentiate the taste in food, constant severe headache. I feel alone even if with people, feeling of hopelessness, lack of motivation or excitement in everything. I've a constant feeling of being left out and stuck at a place while the world is moving rapidly, a feeling of worthlessness. I also experienced breathlessness and suffocation sometimes (I don't have any medical conditions for that). I am having so many thoughts at one time that it makes my brain black, am not able to concentrate or understand even simplest of sentences in one go. I also noticed that I stopped taking care of myself few months back without realizing. I face sudden breakouts where I cry badly without actually knowing the reason, I also had thoughts of suicide few months back I am experiencing these things for more than 1.5 years now but most of them started or increased in the last 6-7 months Plzzz help me in identifying these symptoms