Ideally the tapering off period would have been a little bit longer. But as you have been without them for at least 7 days then things are going to start getting better. What we don't want to happen is for you to start using cold remedies at the moment as they can contain decongestants which are stimulating and will just add to your problems. Also some of the other ingrediants are habit forming too.
What you will find helpful is a herbal remedy containing valerian. This is a natural relaxant which will counteract some of the feelings you are having.
Bach Flower remedies will also help you in this period, and herbal teas with camommille and skullcap (bit of an acquired taste but worth getting used to)
An alternative antidepressant for you is St Johns Wort but you may need to wait another week before starting this in order to have settled down after the withdrawal phase.
The diarrhoea can be settled with two or three days of loperamide (imodium) and careful diet. Do make sure you are drinking plenty of water.
You can get through this. It may be helpful to offload some of your feelings about this to a counsellor or a good friend, if you have someone to listen to you.
Regards
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