Does anxiety cause heart palpitations and faintness?

Hello doctor,

I am a 21-year-old male with no history of heart disease in my family. I have been experiencing some symptoms over the last week but I cannot tell if it is anything serious or if it is just me worrying. Last week I experienced what seemed to be heart palpitations with a little feeling of faintness on and off (I guess with the palpitations) and slight pressure in the chest. (this was after reading these symptoms were problematic and so I am wondering if this is just a result of anxiety over the issue). I have felt a vague pressure on the left side of my chest throughout the week, but I have noted this is mostly when I am thinking about the issue. Another thing to note is that when I wake up all symptoms are gone and I feel quite normal until thinking about it again. I have even taken small 15-minute naps during the day and this has not failed to make any discomfort I am feeling at the time go away. This has been on and off. Most of my other symptoms are gone now but I do feel a slight soreness behind the left side of my jaw. The feeling is very vague however but noticeable. (I am also aware this is a sign of heart issues). I have also been experiencing anxiety for the past 3 or 4 months in general. Should I look into seeing a doctor about this issue? Is there a chance that this is all just a result of anxiety over the issue and is merely in my head?