The only way to know whether or not one has Hep C is through a blood test. One can certainly become infected through coming into contact with HCV infected blood. Basically the Hepatitis C virus must be able to enter ones bloodstream in order for one to become infected.
An opening in the skin like a popped pimple is one way the virus (if present) could possibly enter the bloodstream. It normally isn't likely that one would get Hep C from a hospital gown. However if the robe is contaminated with HCV infected blood products, and someone wearing that robe has a cut or an open lesion, the opportunity for an infection to occur certainly exists.
There are 1,000+ ways one can come into contact with Hep C. Some of the obvious ways are needle sticks, and medical ignorance, errors, or negligence (i.e. giving patients a dirty robe). I suspect these occurrences represent only a fraction of new infections though.
Anyone who has had a haircut with non-sterile implements, been cut by a barbers non-sterile razor, used someone else's razor, has had a manicure or pedicure with non-sterile instruments, had a tattoo with non-sterile instruments, has had dental work done with non-sterile instruments, inadvertently used someone else's toothbrush, been in a schoolyard fight, given or received a 'snotty', applied a bandage to a friends cut, the list goes on and on - is at risk for infection. So, unless they have grown up in a sterile bubble, virtually everyone has been at risk of infection with Hep C at one time or another in their lifetimes.
The fact that some of us get it and others don't is really just the luck of the draw.
Any of us at any time can become infected, or re-infected.
Most people have no idea they're infected until a blood test reveals HCV infection, or abnormalities which lead to further testing (this is how I learned I was infected).
No one understands your concerns better than those of us who have been infected with Hep C. My best advice is to talk to your GP and get a blood test. There is literally no other way to know.
Note: I am not a physician, and this is not the opinion of a physician. I am a former Hep C patient who became infected through unknown means.
Failed Interferon 96', G1a, VL = 9 - 5.5 Million, F3/A3, AST 111, ALT 190, Generic DAA treatment Sof/Led (Mylan - India MYHEP LVIR) - 8 June, 2016
2 Week Results 20 June, 2016 AST 19, ALT 32
4 Week Results 06 July, 2016 AST 22, ALT 30, VL = 35
6 Week Results 20, July 2016 VL only = HCV RNA Detected, Non-Quantifiable <15
8 Week Results 04 August 2016, Labs, LFTs Normal, VL = UND
12 Week Results 31 August, 2016 LFTs Normal, VL = UND
EOT + 4 Weeks, LFTs Normal, VL = UND, "SVR4"
SVR12, 21 Nov 2016. CURED!!!