Those are not normal cannabis nor tobacco symptoms of withdrawal. I would go get checked out. I have found that many of us who quit drugs are malnourished, have underlying health issues, etc... Worry is one of the worst things for our health and mind, so to relieve any potential anxiety or serious illness, it is totally worth a checkup and rule out any serious health issues. Then you can eat good, exercise, and form new coping skills without any doubt you are in any major health crisis.
Hi there- I'm wondering why you came here for medical advice? Maybe you thought there were doctors here...but there aren't any.
As always, it's always smart to get chest pain evaluated by a doctor as soon as possible. Good luck-