Symptoms and health problems of unclear origin need very thorough investigation and require time and often an individual approach. 

Common unspecific symptoms and signs are

• fatigue, sleep disturbance, sleeping problems, feeling run down
• lack of concentration, difficulty to concentrate
• feeling stressed
• loss of hair
• skin problems
• dizziness and giddiness
• tinnitus
• bloated stomach
• abdominal pain, heartburn
• allergy, itchiness, pruritus
• cough
• sweating
• chronic cold, coryza, runny nose, sinusitis
• tension headache, tension neckpain
• headaches, backache, backpain
• abdominal pain 
• joint pain, arthralgia
• neurological symptoms, hearing loss, loss of taste, sensitivity loss
• circulation problems
• nervousity
• weakness, general malaise
• feeling under the weather
• depression
• emotional unstable
• high blood pressure, hypertension
• weight problems
• oedemas and swellings
• reduced libido
• Infertility
• high number of miscarriages
• bad smell from mouth 
• Parodontitis
• Arrythmias
• hormonal imbalances
• pyrexia
• malabsorption

These symptoms are often found in syndromes such as 

• Porphyria, acute intermittend porphyria
• chronic Lyme disease, borreliosis
• familial mediterranean fever (FMF)
• chronic fatigue syndrome (CFS)
• Myalgia enzephalomyelitis (ME)
• Fibromyalgia
• Post-Infection -syndrome
• Sick Building Syndrome (SBS)
• multiple-chemical-sensitivity (MCS)
• Burn-out Syndrome
• irritable bowel syndrome (IBS)
• metabolic Syndrome
• chronic migraine and pain syndrome
• menopausal syndrome
• Attention Defizit Hyperactivity Syndrome (ADS ADHS)

Many of those are caused by modern lifestyle in combination with certain genes and not psychological and psychosomatic disorders.

Sometimes the reasons are strikingly simple and found when asking the right questions, but often detective analysis of a patient's life and circumstances is required. 

This means tailormade medicine:

• every patient is considered as a unique case and all symptoms will be analysed accordingly
• the doctor has to examine the patient very well and has to consider cultural, ethnic and individual in some cases even genetic differences
• specialised tests can be performed even if only available abroad
• treatment with drugs, if necessary, will be adjusted to the individual metabolic capacity and genetic profile
• there are no rigid treatment schemes but individual measures tailored to the patients' needs