Hello sir, sometimes I feel like not able to breathe fully. I feel like suffocating. It usually occurs during evenings till night and lasts long for some hours. I feel like I need more breathe but not able to breathe even if I take long breaths the problem persists. Sometimes I also feel like restlessness and yawn too. Is it a disease? What are the reasons behind the problem I facing? Its happening with me only not with other family members. Background: I went through biopsy this january, founded tb (lymph nodes enlargement) but having not much stronger symptoms except coughing. I'm not alcoholic, no tobacco even no tea. I'm recently encountering these problems related to breathing.