Am I going through mental disorder? Pls help?

Am I going through mental disorder? I am 50 year old man, lost my job two years ago and now a full time father. Six months ago it happened first time when my 14 year old son was ill. I was perhaps stressed. In the midnight, the pain around neck travelled to brain and settled to the right side. A pricking kind of sensation. It lasted for an hour. Next day too the same happened. Then I was going through some anxiety attacks and was becoming too emotional and insecure and always had a feeling that anytime I can die and life is meaningless. Some times too much confusion in brain, some wieard memories come out and I felt too depressed. Sometimes feel I will go mad soon in life. It all the time happened in the night time. Doctors said nothing to worry. I thought a scan could help. But they said not required. I don't drink, don't smoke. I am confused with my life. Or is it man menopause symptoms? I am having normal life too. I am trying to control the symtoms but still confised. Pls help