During the month of june i had shingles on my left breast. i am still having pain on the breast; i am not sure if it is because of the shingles or it is something else it gets very sore at times?

I would think it is: residual pain from the nerve irritation of herpes zoster/shingles. This is fairly common. About 20% of patients report some pain at 3 months. It does seem to improve with time. There are various treatments for this pain called post-herpetic neuralgia including topical lidocaine or capsaicin or oral medication including gabapentin. Work with your Doctor to confirm the diagnosis and pursue treatment