After regularly getting tonsillitis, I had my tonsils removed three years ago, but (minus the pain) I still get the same symptoms: spots on my throat, dizziness, fever and physical and emotional sensitivity. I am 30, have a healthy diet, and take vitamins with probiotics, fish oils and evening primrose oil. I have tried reiki, kinesiology and echinacea - do you have any other ideas?

Everything you are doing already will be helping to build your general wellbeing, but I think you also need a strong herbal antibacterial such as astragalus. This is an effective tonic, good for fatigue, low vitality and recurrent infections. It should be used long-term on a daily basis (but is not to be taken if you are on warfarin, betablockers or have an autoimmune disease). Doctor's A-Z Astragalus, £19.95 for 60 capsules (take two a day), from Victoria Health (0800 389 8195; victoriahealth.com).

Earlier this year, I suffered a slight stroke and one of the aftereffects has been a complete loss of both taste and smell, despite the fact that I have given up smoking since I had the stroke. I have tried zinc tablets, but to no avail.

More effective zinc supplementation could bring back your sense of smell and taste. Toxic heavy metals such as cadmium from cigarette smoke, lead from car exhaust and aluminium are stored in the liver, displacing zinc and preventing its absorption from tablets and food. N-Acetyl Cysteine (£17.75 for 60 capsules; take two a day) is a potent detoxifier and would help eliminate these metals; Zinc Picolinate is an easily absorbed form of zinc (£9.95 for 100 30mg capsules; take one a day). Both by LifeTime, from Victoria Health, as before.

· Emma Mitchell is a natural health therapist. Before following Emma's recommendations, you should consult your GP about any medical problems or special health conditions.

Send your questions to Wellbeing, Guardian Weekend,
119 Farringdon Road,
London
EC1R 3ER.
Email: ask.emma@theguardian.com