[tanysquirrel]

Wait, so am I budding or just about to?
How can I tell when it starts, or when its close to starting?

some get tingles ( I didn't), usually there is the lump behind the areola and nipple area, sore to touch or if you bump. some itchy feelings like you scratch and just cant scratch the itch enough (happens to me a lot), you will see some slow growth, may be able to physically feel lactiferous ducts growing when you push your fingers into breast area (usually advanced growth, tanner stage 4 or 5 I think).

As it progresses:

You may feel some jiggles that you hadn't previously noticed, such as when driving and hitting a bump in road, or walking up and down stairs (that's exciting at first) . Usually you will get growth around the areola and nipples, then you eventually get "sideboob", which when looking down, you see them form sideways, then usually they fill out bottom and top. Though, I am sure there are variations for all, "individual miles may vary". 

Some even have experienced slight lactation.