Don't worry, Dynamite Dean ... you're not alone in your preference. Humans can tolerate a much greater positive G load than we can a negative G load. (Have you ever seen someone who has experienced a "red-out" as opposed to a black-out .... an ugly sight indeed!
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As Crossunder and Burnercan have stated, a stall is a function of AoA, and AoA is influenced (at least in part) by load factor. At Zero-G, there is no load, so the wing will not stall. However, as you transit away from Zero-G into negative G forces, you are now increasing the load on the wing, and are therefore increasing your AoA in the negative direction. When you reach critical negative AoA (regardless of your speed) you will incur a negative-G stall.
As one example to illustrate: That's why when you're doing normal stall recoveries, it's important to unload, but you must be sure not to overdo it (i.e. push forward too much) because you might induce a stall in the negative regime.