Could basal cell carcinoma at an early age (28 y/o f) be a indicator of worse cancer to come? i use all the precautions and don't tan.

Possibly yes: Unfortunately some basal cell cancers may not be directly related to sun exposure and I have seen this in certain individuals as young as 5 years old with a genetic disease that predisposes them to recurrent bcc. Having one bcc in isolation doses still place you at a higher risk for a second bcc. I would advise close follow up with a dermatologist for routine surveillance examinations.

Basal cell cancer: Not necessarily but make sure you use sunscreen. Take care of your basal cell ca.