Amber Rose has had it with her “stupid heavy” breasts. “I’m thinking about getting a breast reduction this year,” the 33-year-old model revealed Monday on Instagram. “My boobs are stupid heavy, my back hurts and I can’t wear cute lil shirts without a grandma bra.” Rose stepped out Saturday night in a low-cut black tank, putting her signature curves on fully display. The mom of 4-year-old son Sebastian later expressed her concern about going under the knife. “I’m really scared of the lollipop scars tho… any advice? Are there any ladies out there that are much happier even though you have breast reduction scars? And no I don’t have implants…