Can you still have Marfan syndrome without haveing long limbs? I have all the other symptoms and my doctor thinks it's a possibility.

Unusual. Each patient with marfan syndrome has a different presentation. Without long limbs (arms/legs) it would be unusual to have true marfan syndrome, but those findings are not very important diagnostic criteria. The cardinal features aortic root dilation (aneurysm) and dislocated lenses. The website http://www.Marfan.Org is helpful to patients and physicians.
Variable signs. Arachnoid digits and limbs are common. High arched pallet, pes cavus, ectopic lens, mitral prolapse, are some other signs, but variability is common. Testing can guide.