Survivors/ Cancer free - Ever having something trigger your memory?

So, throughout my cancer I had to take many medications, liquids, pills, chemo etc.  I have been in remission for about 2 years now, every time I think about medication, the thought of needing to take any type of pills, or seeing anything that triggers my lowest point of cancer or a certain bad memory that I had.  I automatically get really nauseated and sick to my stomach.  

Does this happen to anyone else. Please share.