Iv totally had enought 109 days since last period

Keeley
Last period was 109 days ago!! Iv been to loads of docters appoitments to check my hormones they was normal, checked to see if im pregnant 2x they come back neg they have checked literally everything over the last 60days and everything seems normal.. i really am now worried sick to what it could be that has stopped my periods i have sore and lumpy boobs i sometimes have pregnacy syptoms but neg test and still no period.. i have a appoitment tomorrow to sort the next step out to what there going to do with me hes mentioned if everything come back cleae there sending me for a scan... what do you all think do you think theres something seriously wrong with me aw could i just need my periods restarting iv totally had enough im keeping it all inside and dont talk to no1 about it.. does anyone know of anyone thats been through the same was they pregnant or did they find out something seriously wrong with them.. please someone put my mind at rest thankyou