Constant fear, tension, sickness,

I am always feeling low and lonely.I am always sad,tired,and feel that i am not well.I am tensed and have a fear of something unknown and carry ultranegativity.Have lost weight memory and confidence.I am very tensed for my children.I think everyone will leave me alone i do not have good relations with my wife,she does not like me much bcoz of some past issues.She does not like my family n i am not able to accept this.I want my family as well as her.I know they are not as good but i can not leave my blood relations so easily.I try to do things but am tired really fast and then not able to do it.I do not feel good.I have taken thousands of scors of medicines from everywhere but fail to find the root cause feel very helpless.Never spend money on myself not even for basic requirements of a man,do not eat anything,no expenses etc..I do not get sleep earlier thus fail to wake up early!!Do not feel to work.Always tired and lazy,stomach problems really need help plz.....