All your symptoms like numbness
in hands, low blood pressure , tiredness
, nausea and your feeling that job is stressful point towards anxiety
. Is it present only for 1 week and you were perfectly fine before that or the problem has worsened in the last week? If it is present only for the last i week, there could be some issues worrying you for which you should consult somebody you confide in or else professional help from a psychiatrist
. Whatever, this problem should soon be over and you will be fine.