Welcome to Healthcare Magic and thanks for your question...
The symptoms which you have described - a constant feeling of fear or apprehension, inability to relax, palpitations, etc. seem to be indicative of an anxiety disorder, probably a generalized anxiety disorder
(GAD). You need to elaborate more on the part where you mentioned that you have certain 'obsessions'.
Treatment of anxiety disorders can be with medication or using psychological therapies. Anti-anxiety medication
can be used for short periods
of time to give quick relief and SSRIs (a class of anti-depressant medication) are usually used on a long-term basis. Psychological therapies include talking therapies like cognitive behavioural therapy, other behavioural therapies and relaxation exercises. Often, a combination of medication with psychological therapies gives better and longer lasting results.
You also need to see if there are any underlying stressors which are perpetuating your anxiety symptoms, in which case, tackling them and learning better coping strategies will be an important part of treatment.
Al the best.
- Dr. Jonas Sundarakumar