Question about sympodial orchids

[foxtailskies]

Hello

I've had my Odontoglossum 'Marguerite Holm' for a year now, I got it as a mature flowering plant last year and have been watching it grow ever since. It got off to a rocky start... I figured out a few months ago that the bark it appeared to be planted in covered up a pot full of pure sphagnum moss *wince* but since it's been in pure bark it's been doing much better! It has a new growth that's about half as tall as the others, with a pseudobulb just starting to form; there are two other mature bulbs with leaves and one more without a leaf. Anyway.... my question is about flowering Can a pseudobulb that has already produced one flower stalk produce another one? Also, can orchids do two things at once- vegetative and flowering growth? My other two orchids are both babies, I'm curious to know what to expect from an orchid that might someday flower again

Thanks!
~Heather