This can happen with any gear bro and you'll see this happen from time to time.
The whole solution just needs heating up and the hormone has fallen out of suspension with its oil carrier. Bring water to a boil and shut off stove, let water cool to 'not boiling' and be really hot, put vial in with an 18g needle (or whatever lowest gauge you have) stuck into the top (just the needle) to let it aerate, let the vial sit in the almost boiling water for 5-10 minutes. Take out vial swirl and repeat if necessary.
You won't see 'crystals' that's more of a chemistry term that means it fallen out of suspension. Any high concentration steroid is prone to this, some more than others. Everyone things it's the cold and while this is the most common reason it happens there are many others ways too and it in no way has anything to do with the quality of what you have in that vial so don't throw it out.
This is your chance for a little microcosm you can do yourself of what the big labs do with larger volume.