Hi, what you’re going through are the symptoms of depressive anxiety. This could happen due to stressors/ future apprehensions, past trauma or even genetics.
The neurotransmitter in our brain named serotonin is deficient which is why all these symptoms start showing. In such cases you need immediate medical intervention and consult a psychiatrist and a psychologist for a in depth case history taking and therapy.
Next Steps
Approach a psychologist and psychiatrist both.