Heather Locklear may have to answer for her alleged drunken attack on a paramedic — and not just in criminal court — because we’ve learned the EMT’s hired a lawyer.

Sources connected to the case tell TMZ … the EMT who Heather allegedly kicked during her most recent dustup late last month claims to have suffered serious injury during the ordeal. The EMT has hired personal injury lawyer Kevin Flahavan.

We broke the story … Heather was…