Do you already have some cancer element ? If not-
YOu need not be worried& thinking of Cancer. There are some conditions which cause such complains. &ofcourse to investigate from all point of views is always good.
PLease get your-
-Genaral physical check up by a physician.& also
- CBC with periferal smear,
- Mx test,
After Dr will come to conclusion & advice you accordingly.& you will be alright.