How can i be sure that it is anxiety?

Well, I don't have all of your symptoms but I do, or atleast and pretty sure I have anxiety. And I have symptoms such as increases heart rate, shortness of breath, fear in general, and muscle spasms, and a pain in my chest sometimes. And they do happen basically every day. Can't remember a day they haven't happened. So anyway, I am pretty sure the symptoms you have given are anxiety symptoms, everyone experiences it differently. And the fact that you are worried that you may have some other medical problem could in and of it self be a symptom of anxiety. I am not a doctor, but from what your doctors have told you I would say that you do have anxiety. Now I would recommend going to you gp and talking to them about anxiety directly so that they can give you either meds or a point you to a tharapsits that could help as well. You are not alone, alot of people go through this, you will be alright.

Again I am not a doctor I am just saying what I am seeing.

Sheldon and Eduardo are correct. Every single thing you listed is reported every day of every week, etc. here on this forum.  These are classic symptoms, Alex.  Relax, it can be handled. If you need proof, take an hour or two to read through other discussions on anxiety in this forum. You will learn a lot,

Go to your doctor, and take a list of your symptoms, and ask specifically about anxiety disorder, Honey. if he dismisses the idea, I am so sure it is anxiety that I will tell you to go to another doctor. More and more doctors are recognizing anxiety...but not all, even though in the US alone there are at least 20,000,000 people dealing with anxiety. I hope this helps, Honey.

Be sure to let us know what the doctor says and if he prescribes any meds. If he or she does, please take the meds. They will calm you enough to look for ways you can help yourself get your life back. For that you are in the right place for understanding, people who are or have been right where you are now, caring and support.

You are going to be alright, even if your mind and body are trying to convince you that you are not....that is also a classic anxiety symptom.

Sending you a big hug, Alex.

Aleks . . . . it's anxiety. No medical instrument can detect it. I agree with what everyone has told you. Talk to your doctor about anxiety.

?I have a good majority of your symptoms and yes, they can be overwhelming.

?We are here for you!! Keep posting. Keep expressing yourself. You are in my thoughts aleks. You are not alone.

?Sending you postive vibes.

If everything is all clear then YES most definitely this are all "classic" signs of anxiety I'm afraid and there are many more, but I found once I knew the symptoms were caused by the anxiety I found I coped a lot better anxiety is an illness and very unkind to our bodies, if you scroll through the posts on here your will find every one will have some or all of theses symptoms which in a way is reassuring and you are not going mad. this is an excellent forum I joined in March or April and I have found it so supportive and helpful and its from people who are all going through the same thing, its actually kept my sanity lol just to know you are not alone 

Oh, dear. I'm so sorry you're going through all this. It's so difficult to believe that what you have is anxiety.

Unfortunately, you HAVE got it, which is why you're getting all these symptoms.

Therapy and medication help this problem. Do go back to your doctor, ask for medication to calm you down and get a referral to a Cognitive Behavioural Therapist.

Hugs xxxxxx