<s>[INST] OK my boyfriend has red knot on his arms along with a really bad headache. I took him to the ER this morning and they pumped him full of fluids and he felt a little better but now it is back. Also he told the doctor that he was having blurry vision. But they really didn t do anything for that. What could be going on? [/INST] Hi, The symptoms suggest that  it could be raised intracranial tension. There is no mention of the cause or the incidence that precipitated the event. I think you should consult a neurologist or a neuro surgeon. Kindly do not delay or ignore it. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nirmal Chander Gupta, Orthopedic Surgeon </s>