I understand your concern. Cold chills are one of the autonomic symptoms that occur when someone has a depressed or anxious thought. It might be due to thyroid problems as well. More information regarding your sleep, hunger, energy levels and concentration at whatever you do would be helpful to decide the severity of your condition. However it is easily manageable with appropriate treatment. Some counselling sessions and if needed 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. Discussions will be held confidential. You can directly consult with me through Practo as needed. Online chat consultation is available.