Can daily 90VAC shocks have effect on human body?
You're probably feeling small leakage currents from a Y-capacitor connected from the line to chassis.  These are specified so that a dangerous amount of current can't flow if the chassis ground opens up, as it did in your case.

The chance of it having any effect on you is extremely small, but this is an engineering site, not a medical site.  If you have concerns you should be asking your doctor, not random non-medical people on the internet.