<s>[INST] hi! my 5 year old son woke up complaining of severe headache,his crying bec of the pain.it happened three times already and his cbc was checked and it was normal but the platelets is quite high,he also experienced palpitations and complaining of difficulty of breathing when running and playing. [/INST] Dear parent, among generalized symptoms associated with high platelet count is headache, numbness of hands and feet and weakness among blood clotting symptoms that are associated with high platelet count is changes in speech, confusion. Difficulties in breathing, dizziness, throbbing pain in arms and legs, nausea, pain in jaw or abdomen or neck blood clotting can be serious and needs you to go to hospital for evaluation </s>