Agreed with Dr sandeep Check with any ortho docter near to you bcos your explanation will giving sign for some internal joint injury. Initially  go as per ortho examination after subside of these symptoms you need proper knee and ankle rehab for functional achievement .

Kindly go for an MRI as it will can be a case of ligament or meniscal injury...kindly share your reports for the same so that we can have clear picture for ur case...till then dnt take weight on your knee and ankle..take bed rest Thank you Take care

it can be a case of minor Grade I ligament pull or can be a case of meniscal injury or severe Grade/moderate ligamentous sprain. ....Do the ice packs twice a a day for 3 days +apply some pain killer gel and take rest. don't overexert, use crepe bandage and keep the limb elevated......if no relief , go to a physiotherapist and get the treatment done(US+Wax therapy+TENS+EXs). You will get the relief for sure.......Otherwise MRI may be required.

Core Strengthening Exercise- Straight Leg Raised With Toes Turned Outward, repeat 10 times, twice a day. Hams Stretching- lie straight, take the leg up, pull the feet towards yourself, with a elastic tube or normal belt. repeat 10 times, twice a day. Quadriceps Exercises- Lie straight, make a towel role and put it under the knee, press the knee against the role, hold it for 20 secs. Repeat 20 times twice a day. This will help relieve some pain.

Have rest, use ice pack 2-3 times a day for 10 min. Use compression bandage, hv Mri to get diagnosed and for safer side, consult an ortho,   have physio sessions, stay healthy...

Apply ice frequently. Wait for 1 or 2 days swelling not reduced. Please consult orthopaedic surgeon.

Check urself whether u can bend knee compleyely or not. Secondly the knee swelling after twisting knee and ankle could be bcoz of torn internal structures of knee. Apply ice and take pain meds and rest.if swelling doesnt go down and ur not able to bend knee...u dhould visit orthopedic surgeon for the clinical assessment for ligament or meniscus injury. U might need MRI after orthopod consultation. Thanks

Take rest, do ice message, use compression bandage on swelled part, keep it elevated use pillow. Atleast 3 day after that if pain swelling exist then go for orthopaedic review and x ray done for the possibility of fracture. Follow accordingly.take precautions avoid bending, twisting. Best wishes