Why do i feel like crying on rainy days. i feel really gloomy and start thinking about stuff that concerns me. is there anyway i can stop feeling that way?

If going on for more than a week or 2, professional counseling can help (psychologist, psychiatrist). Maybe an antidepressant. Seek help before this becomes an ingrained pattern

For your depressive symptoms, 1st have a physical exam to rule out a physical problem. Please consult with a Clinical Psychologist with expertise in multiple types of psychotherapy to help you. Research indicates with psychotherapy you can change & find better coping mechanisms. Please see a Psychiatrist for medication.