The homeopathic remedy Cobaltum Metallicum is for backache, headache. Modalities:: WORSE from lying down; rising from sitting; morning; heat of bed (causes itching all over) or sun; morning. Cold air causes lachrymation and also aggravates pain in teeth. Jarring aggravates headache. BETTER from hawking mucus; continued motion. Source: Robin Murphy Lotus Materia Medica
You can find Cobaltum Metallicum at Remedy Source.