RE: HEADACHES and Clenbuterol
What about increasing water, potassium and magnesium maybe even taurine and decreasing sodium. It could be a tension headache.
As you get used to using clen the beta receptor sites that clen attatchs to should start to close down, reducin the effect and so relieve some of that tension however reducing dose or just stop taking it in favour of, say, ephedrine is probably a better idea. Partyboy is rather knowledgable about clen though and has valuable advice.