Yep, it is possible! especially when you are exercising and so dealing with all that lactic acid! :)
That is so great that you had an emotional release! way to go! I bet you're ready for a hot bubble bath and a nice massage? hmmm? :)
Now I do think you need to read up on the healing crisis and toxicity (see FAQ), because there is a distinction that needs to be made between candida "die off" and toxic overload.
IF you are killing candida, then yes you will get "die off symptoms" as they are commonly called, and this is actually TOXIC OVERLOAD. It is a healing crisis. It means there are too many toxins for your liver and lymphs and kidneys to deal with, perhaps because the bowels are already overworked and have many previous meals still in them; or perhaps because you are not giving the body enough fluids and alkaline agents with which to exit these toxins. All toxins require SOMEthing to take them out. Could be an anti-oxidant like Vitamin A or C, or potassium, or chromium, the list is endless. This is why things like Bieler Broth and Cleansing Drink and fresh-squeezed veggie juices and cleansing carrot salads are SO important to remaining in your comfort zone. They help exit toxins so they don't poison you over and over again.
Exercise will cause "die off symptoms" that is actually toxicity and healing crisis combined, because it stirs things up. We store toxins in our muscles! Exercise and massage release them. If the liver isn't ready to handle them, they float about in our bloodstreams and make us feel sick.
And the Krebs Cycle has toxic by-products, so you're actually creating MORE toxins by exercising, but these are temporary and easily dealt with IF you drink fluids and provide electrolytes (EmergenC packets, Cleansing Drink, potassium broth).