[QUOTE=mahdiyah;66054]first i do meditation prayanama as i was taught they taught me other asanas too such as sakkara asana…surya namaskar and as if now im only concentrating on my thyroid problem …i recently had pneumothorax so i cannot stretch much…i do yoga near the wall but i dont touch the wall with my feet and i use yoga mat i dont use anything under shoulders[/QUOTE]
Safety and alignment principles mandate that in almost every body this pose be done with props so that the 7th cervical vertebra is not in contact with the floor. Further, beginners use the wall to comes up in order to find the appropriate actions without exacerbating the pressure on the foundation of the pose.
There are, clearly, some “styles” who not only allow but apparently advocated doing Sarvangasana “flat on the floor”. I jut don’t happen to be part of that particular collective.
There are other poses which have similar effect but less risk. Beginners start there and work their way up, like they would in any sound curriculum.
gordon