Hey everyone so if you haven't read my previous posts I've been suffering a lot these past months with so many symptoms, my mind has been everywhere. So I've had about 3 ecgs, two blood tests, I've had my blood sugar levels checked, I've had my oxygen levels checked, I've had a urine test and it's all come back fine. However even after all this at times I'm convinced there I still something wrong as when I go to do things it feels like my heart rate sky rockets up and right now I'm able to feel my pulse near my ribs stomach area and its worrying me. I'm frightened to do anything because of my heart rate. Okay so another things I was on 50mg of sertraline for about 6 weeks and went back to thw doctors on Monday and they've increased my dose to 100mg and I've been taking that for a few days now but I've been feeling a bit sick and more anxious is this nornal after upping ur dose??? Is it normal for side affects to come back and for ur anxiety to be even higher?? Does this settle? Another thing was me terrified I had a brain tumor, I had an eye test a few days ago and I had to put my head in this thing to see if my eyes could see when it flickers, and my hands went really sweaty, and my head felt all weird, and I just did not feel good, I don't kno if that's anxiety or what? But the optician looked at my eyes and at the back of them etc and everything was okay except my eyes a rugby ball shaped and I'm short sighted which puts a lot of strain on my eyes which coukd be the reason for my headaches. Despite all this being done i can't get my head over that there's nothing life threatening wrong, I'm so convinced there is no matter how hard I try.
Anyone??? 
The last time I was on antidepressants, they made me more anxious. My doctor told me to up the dose and I got even worse, I also put on 2 and a half stone in 5 months! So I came off them. Speaking to a psychologist helped me much more than any tablets because I needed to change how I was thinking in order to calm down.
As for your eye test experience, your symptoms could be anxiety related or even side effects from your antidepressants. These tablets are altering chemicals in your brain, so it will have an impact on your body as well. If you are worried about a symptom, look at the side effects of your tablets and see if it is related. It sounds like you are not getting on too well with this medication, ask to change to something else and try and have regular therapy for your anxiety, it works so much better. You need to understand the cause of the problem if you want to change it. Medication just treats the symptoms.