Copied from Langer info...
You will not be allowed to undertake parachute training if you have ever suffered from any of the following medical conditions, unless you and your Doctor have obtained the prior approval of the Medical Advisor to the British Parachute Association (who may be contacted via the address on the 'Declaration of Fitness' form): Epilepsy, fits, severe head injury, recurrent blackouts or giddiness, disease of the brain or nervous system, high blood pressure, heart or lung disease, recurrent weakness or dislocation of any limb, diabetes, mental illness, drug or alcohol addiction.
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British Parachute Association they are in Leicester. Speak to them And the centre you want to jump at
not as bad as it seems cross fingers for you to do a tandem as a one off is more fun for you.