Heavy head nd trembling. Still persist.

8 months ago 1 night i felt really anxious nd frightened. The fear was of losing my mind. Since that night I went into a sad state of mind and self diagnosed myself as under depression i somehow handled myself nd kept indulging in social life nd the situation improved.2.5 months ago again for 2..3 days due to some worry about someone else i again went under a lot of stress since then I am having certain issues 1. Heavy head nd dizziness 2. Off balance while walking nd sitting 3. When I close my eyes i feel I am sinking in the pillow These issues were going on and everyone told me that these are anxiety issues and not to take too much stress But last night I again felt really stressed nd a feeling that my body is trembling i couldn't sleep for good 2 hours.A night before i had a very short sleep of 4.5 hours . I somehow managed to sleep but even today my body is not completely relaxed an a feeling of trembling along with above symptoms still persist.