Good to meet you and a big welcome to the forum you have come to a good place. I have not had the 1st symptom you mentioned in your post but do get a racing heart beat when I am feeling anxious and I know that this is a common symptom with anxiety.
I think it is good you are seeing your doctor as it is always best to get a medical opinion. Do ask for more tests as that will put your mind at rest. I hope you start to feel better soon there are various therapies such as CBT which can teach you techniques to help relax and control your anxiety may be an idea to ask your doctor about that.
I try not to worry about the future -- so I take each day just one anxiety attack at a time.
Anxiety/Panic Forum Moderator
Diagnosed with:- Asperger's Syndrome, dyslexia, gad, sad, ocd, depression, reactive arthritis and ankylosing spondylitis
Medication:- 400mg Lyrica, 15mg Escitalopram, Serequel 25-50mg, 5mg Diazepam Ibuprofen 400mg x 3