Hello, I'd like to help you with your question.
It sounds like from your description that you might have a phobia called Haphephobia. It is the fear of being touched. Sometimes it is specific, as it seems in your situation. And other times it is more general in nature.
The fear can sometimes be traced back to abuse in the past, particularly childhood abuse. Once traumatized, developing a fear or phobia is not all that uncommon. And phobias are easily treated in therapy so if you do decide to seek treatment, you have an excellent chance of getting better.
In order to find a therapist, contact your doctor for a referral. You can also search on line at http://www.bacp.co.uk/
You can also use self help to address your fear. This has the benefit of helping you right away and offering reassurance that what you are experiencing is treatable. You can educate yourself on phobia, read books with treatment options you can use to reduce your anxiety
and you can talk with others who have phobias and anxiety on line or in person. This can help you feel less alone.http://www.helpguide.org/mental/anxiety_types_symptoms_treatment.htm http://www.helpguide.org/mental/anxiety_self_help.htm http://www.webmd.com/anxiety-panic/guide/mental-health-anxiety-disorders
The Anxiety and Phobia Workbook by Edmund J. Bourne
Attacks: The New, Drug-Free Anxiety Therapy That Can Change Your Life by David D. Burns
The Cognitive Behavioral Workbook for Anxiety: A Step-by-Step Program by William J. Knaus EdD and Jon Carlson PsyD EdD
Coping with Anxiety: 10 Simple Ways to Relieve Anxiety, Fear & Worry by Edmund J. Bourne and Lorna Garano
Support groups:http://psychcentral.com/resources/Anxiety_and_Panic/Support_Groups/ http://www.dailystrength.org/c/Anxiety/support-group
I hope this has helped you,