13 month old, chronic cold symptoms, rapid heart rate, difficulty catching breath, some acrocyanosis, irritable, pale?

Go to doctor now... If I am interpreting your question correctly, a 13 month old child with these symptoms should immediately be evaluated by a doctor. It could be the sign of something very serious.

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20 years old. Chest pain, especially when lying down. Pale, sweaty, lightheaded. Severe headache. Rapid heart rate that jumps around.?

Scary. All symptoms point to a the fact that you are having some type of tachy-arrhythmia (fast abnormal heat rhythm). Given what you're describing, your body is not tolerating it very well so I suggest a trip to the closest ER or Urgent care center and would have another person drive or call 911. Read more...
Fever? You are really sick. Either you have the flu, or something else is wrong. You need an evaluation in an ER. Call EMS or have someone drive you. This is not something that can be fixed through a computer, you need an exam. Read more...

Hello I took atarax (hydroxyzine) 12.5mg last night once for insomnia. Today I feel extreme breath problem and rapid heart rate what should I do please? Urgent!

Time. There has been recent warning on cardiovascular issue from atarax (hydroxyzine). I expect that the anticholinergic effect would subside in less than 24 hours. However if this problem is very bothersome, you will need to go to the emergency room if you can't get an appointment with your own doctor. In the meanwhile, avoid any stimulant such as caffeine. Read more...