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Hi there. Welcome to our site.
I'm sorry, but I'm a little confused on what specifically I can do to help you. Can you clarify whether you're just seeking a professional opinion (basically an educated guess) on what could be wrong, or are you looking for technical guidance on how to diagnose and repair the issue yourself - might need access to tools such as a multimeter, test lamp, etc.
That certainly sounds like the parking lights and turn signal circuits are shorted together. To diagnose this kind of issue, it is necessary to disconnect and trace the individual circuits with an Ohmmeter. Please let me know if you'd like me to help you with that.