Healthstone and Health Pot Macro #showtooltip issue

[Michael000]

Now that Healthstones are flat out better than any kind of pot, im using them if there's a lock in the group. To do so im currently using this macro which uses a healthstone if I have one in my inventory and if not use an Ancient Healing Potion

#showtooltip
/use Healthstone
/use Ancient Healing Potion

The problem im running into is that if I don't have a healthstone in my inventory the macro shows up as a big ? on the button. I was wondering if there was a way to have the healthstones tooltip/icon show up when I do have one inventory and if not have the Ancient Healing Potion show up. Thx in advance for any help.