Hello,
Your Patient is exhibiting symptoms of mushroom 'poisoning'.
See Agaricus Muscarius in Concordant by Vermeulen.
" Food & Drink- Thirsty all the time.Nausea after a swallow of cold water.
Nausea and gagging even after using light food moderately.
mind- 1. ...shown by increased cheerfulness, courage, exalted fancy."
Chill - great chilliness in open air, strikes through whole body. Chills or sweats easily. Can't get warm in room.
Nose- watery non-inflammatory disharge.
Abdomen- Burning in abdomen.
Limbs, Lower - Aching in legs."

I have worked in a drugs detox cliinic for the last 3.5 years and when we get a client who seems to have had a 'reaction' from a substance,we tend to give a potentised version of the same/similar drug. In this case you need to give a similar substance, to see if it will remove the blockage.
I have used this before at The Travelling Homeopaths Collective at an outdoor function, when a woman presented with symptoms related to the mushrooms she took the year before (at the same function) .
One dose of 30c cured it.
Give it a go, you'll be suprised how treating like this for drug-related problems can be helpful to move your case on a bit. We use nosodes to get things moving, this is the same idea. It's not the similimum, but its a never-been-well-since symptom,
In Peace
Mary
Miss M L English DSH, RSHom
Registered Homeopath
www.maryenglish.co.uk