hi ! from what u have explain, it seems like periungual warts to me. Due to repeated biting injury the virus must have found entry to your skin and caused lesion, it usually seen as rough bumps with irregular surface around the nails. It also seems to rapidly spread when the person immunity has decreased and during certain diseased condition which decreases the immunity of our body.

It is usually treated using immunomodulators and locally destroying the lesions using various method like salicylic acid paints, cryotherapy ,lasers etc. You should strictly avoid biting your nails during this peroid as local injury may cause wart to spread along the line of injury.