Anxiety issue_is it withdrawal symptoms.

I had anxiety disorder issue 30-35 days back (health anxiety-raise in BP and was thinking what could happen) so i had some symptoms. I had consulted psychiatrist for that. Doctor gave me nexito 5mg and cloam 0.5mg. I had used them for 15days(In between i had early morning awakening and sense of fear). Later i had stopped them by informing doctor that, i was feeling better and could coupe up with anxiety issue and dosent want to use further medications(don't want addiction or dependency). It has been 10-12 days since i stopped them. Now i am feeling better(doing my job, spending time with family and friends) but except some sense of stomach fear from last 2 days for almost certain times in a day and was feeling sudden weakness at some times. Why it is happening? Any solution on this. Please advise.