✔ 最佳答案
my right ankle was psrained for 3 months, and i found difficult on jumping.
Base on your problem, it's lack of information, such as how you sprained your ankle, any "pop" sound, any weakness when happened and now.
The easliest injuried part is those outermost ligament and aslo the tendon attached. These structure will make you different to jump and even walk, because of the weakness of keeping the joint stable and moving the joint.
Moreover, another cause of your problem may due to the malposition of bones in your ankle joint, such as the talus bone.
In your case, I suggest you consult a physiotherpy clinic and check up your problem.