Itchy nipple and hot shooting pains

Hi So worried
I have had tingly nipple on one side for 2 yrs nearly and last week suddenly the most awful pains started-hot and searing right thru breast. had a mamo in June and it said ok. Told GP about itching last yr and she wasn’t concerned. now worried I should have insisted on a referral sooner. Frightened now cos it has gone on for 21 months now. went yesterday and another Gp is sending me to clinic. It wakes me up at about 4am so shattered.
Anyone else have these symptoms?
Nigela x