<s>[INST] my 26 year old neice was hit by a car on her bike 9 days ago. spent 3 days in the hospital for a cervical in jury. mri, ct, eeg xray all negative. yet she is stuttering, slurred speech and twitching of arms and legs . jaw is crooked trouble chewing and unable to smile lip wont allow. stroke testing also negative. discharged from the hospital no one could figure out whats wrong they are labeling it all stress related. she now a lump behind her right ear on her neck [/INST] Hello, The possibility of a concussion or counter-coup injuries may present like this. Sometimes the lesions may be not found on MRI and scans, but symptoms may present. It may take time to give her emotional, physical support. The regular scan may reveal the problem. Please consult your doctor he will examine and treat you accordingly. Hope I have answered your query. Let me know if I can assist you further.   </s>