I understand your situation. You seem to be suffering from depressive symptoms including concentration difficulties and heaviness of head. Information regarding your sleep and energy levels also would be more helpful to decide on the severity of your condition. However it is easily manageable with appropriate treatment. Some counselling sessions along with medical help might be useful for you. I would also be more than happy to help you with that if you are looking for online assistance. You can directly consult with me through Practo as needed. Online chat consultation is available.