Hello. All that you mentioned are feelings. There must be trigger that lead you to such thoughts in spite of the fact that you claim you have no major issues. You need to find out the reasons behind such feelings.
Next Steps
Meet a psychotherapist. Analysis Of your behaviour, moods and thoughts has to be done. once you find the reason behind such conduct, you can rightly Deal with it.
Health Tips
You are fine. You just need guidance, life planning and emotion management.