Yes, this last factor may not be the complete reason. There is reason to believe that something from the past is infringing on the present to cause such a reaction. Your bp is certainly not normal and this is a sign of the stress
you are in. There is a lot of anger for sure and it seems to be covered up with some fear
too. The symptoms are not looking good either and you must meet with a counselor first, and then if that person decides, you may have to meet with a doctor too. The timing is somewhat consonant with a person who is into what is called delayed adolescence. The sudden development of these symptoms is therefore not surprising. You must find out if there is any family history of psychological problems from the time of your grandparents, on both sides. Apart from that there may be some developmental issues that have not been resolved. So when meeting with the counselor, it is better to take your parents with you to throw some light as to the genesis of these problems. Do not neglect this for much longer because early interventions favor good prognosis. Also remember that you can get out of this mess only with full cooperation. In the meantime please do regular exercise, sleep well and eat healthily. Even if you do not like it, you must socialize to prevent your mind from internalizing these emotions and issues, until proper diagnosis and treatment is started. Finding a job will go a long way to relieve some symptoms but not to solve the problems.