I have had the same partner for over a year now and about a week a go i have a hard lump about the size of a pea on the hood of my clit not sure pimpl?

Sebaceous cyst: It could be a sebaceous cyst (epidermal cyst). This is a cyst that can form if an oil gland in the skin gets blocked. The secretions build up and cause a cyst. Using a warm compress can help it to resolve.

Bartholinitis: You have an infection in your Bartholin's gland. Apply hot compresses to the lump so that it comes to a head. Make an appointment with your gynacologist. When the abscess is ripe he may want tolance snd drain it.