hello welcome to healthcare magic As u have said that any adverse event brings anxiety as well as negative thoughts and you can t control it (right from childhood) ..... so it might be you are suffering from some sort of Anxiety disorder. But don t worry ..... your problem can be solved easily as there are many drugs to control these kind of thoughts. U should consult a psychiatrist as soon as possible and i assure you, you will be alright after treatment ....... however, before that u try some relaxation exercises like deep breathing, yoga, meditation etc. If you can give some more details about your problem..(like what kind of adverse event brings anxiety?).. i can guide you better... Hope it helps Wish you good luck Thanks